You are at a conference for a fellow scientist who is giving a lecture in a field you
are both researching: human evolution and ancestry. In his lecture, he compares
many of the behaviors of humans and Chimpanzees, and compares the
behaviors of humans and Orangutans. He concludes that we are more closely
related to Orangutans than Chimpanzees. Is he correct?

Answers

Answer 1

Answer:

incorrect

Explanation:

Answer 2

This is an incorrect statement as orangutans are the most distant relatives of humans among the Great apes and chimpanzees are the closest.

What is the evolutionary relationship?

The link drawn between different species of organisms considering their evolutionary history is the evolutionary relationship between these species. Genome sequencing is a method to study evolutionary relationship between the organisms of different species.

The humans, orangutans, gorillas and chimpanzees are grouped together in a family called as as the Hominidae. The Genome sequencing of humans, chimpanzees and orangutans revealed that humans and orangutans share about 97% of their DNA. This is much less than humans and chimpanzees which share 99% of their DNA.

Therefore, the statement that humans are more closely related to orangutans than chimpanzees is an incorrect statement.

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Related Questions

identify the sphere wher life first emerged on earth hydrosphere, lithosphere, atmossphere

Answers

Answer:

hydroshere

Explanation:

hydro=water

Answer:

you're answer would be hydrosphere

Explanation:

Life on Earth, emerged in the hydrosphere, at least from the findings and data so far. The reason for that was that the atmosphere and the lithosphere were still in a faze were they were not very hospitable for any living organisms to develop. The hydrosphere, or the water bodies, on the other side, were enabling conditions for life, not perfect or as we have today, but still reasonably good, so the life started developing into the water environment, and after the atmosphere and lithosphere changed over time, it spread on them as well.

hope this answer is correct :)

Which amino acid chain will be formed by the codons shown below?
ACU CCA UCG
Messenger
Second base in codon
RNA Codons U
С
A
G
UUU UCU
UAU
UGU U
UUC
Phe
UCC UAC
Tyr
UGC
Cys
U
Ser
UUA
Leu
UCA UAA Stop UGA Stop A
UUG UCG UAG Stop UGG Tep G
CUU CCU CAU CGU
U
His
CUC ССС CAC) CGC
Leu
Pro
Arg
CUA CCA CAA CGA
A
Gin
CUG CCG CAG CGGI G
AUU) ACU
AAU
U
Asn
AGU
SC
AUC
lle ACC
AAC AGC
A
Thr
AUA ACA ААА AGA
AUGStart Me ACG AAG AGG
GUU GCU GAU GGU
U
Asp
GUC GCC GAC GGC
С
Val
Ala
Gly
GUA GCA
GGA A
GUG GCG GAG) GGG
G
c
First base in codon
= 0 < =0 < = conoco
Third base in codon
Lys
Arg
G
GAA Glu
A. Thr-Pro-Phe
B. Thr-Pro-Ser
C. Asn-Pro-Ser
D. Thr-Ser Pro

Answers

Answer:

the answer is b. thr-pro-ser

The amino acid chain which will be formed by the codons "ACU CCA UCG" will be Threonine-Proline-Serine. Thus, the correct option will be B.

What is amino acid chain?

An amino acid can be defined as the fundamental molecule which serves as the building block for protein molecules in the body. There are about twenty different amino acid molecules present inside the body of an organism. A protein molecule consists of one or more chains of amino acid molecules called as polypeptides whose sequence is encoded in a gene.

Different codons are present in the cell which encodes for different amino acids. A codon is a set of three nucleotides which encode amino acid molecules. ACU codon encode for threonine amino acid, CCA encode for Proline amino acid, and UCG encode for Serine amino acid.

Therefore, the correct option will be B.

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Which of the following biological macromolecules is correctly paired with one of its functions?

Choose ONE answer:

A. Proteins ----> provide cell structure

B. Carbohydrates ----> store genetic information

C. Nucleic acids ----> digest dead cells

D. Lipids ----> give quick energy to cells​

Answers

A. proteins
they play many critical roles in the body, and are required for cell structure, function, and regulation of body tissues and organs :)xx

Of the given options, proteins is correctly paired with its function, that is, provide cell structure.

What are proteins and their functions?

They are the large and complex molecules, which perform many essential roles in the body. They perform majority of the function in cells and are needed for the structure and function of the cells. Apart from this, they also play an essential role in the regulation of the tissues and organs of the body.

Of the different kinds of proteins found in the body, the structural proteins provide structure and support for the cells. On a bigger scale, they also help the body in movement, for example, actin protein.

Thus, the correct answer is option A.

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Not all of the members of everyday categories have the same. Most fish have gills, fins, and scales. Sharks lack the feature of scales, yet they are still categorized as fish. This is most problematic for the __________ approach to categorization.

Answers

Answer:

species to

Explanation:

The paranasal sinuses are lined with a membrane that creates mucus during allergies or the common cold. Presence of mucus and swelling of the membranes can cause a "sinus headache." If Regina has a cold and she feels the pain of a sinus headache inferior to her eyes, which bone is housing the affected paranasal sinus?

Answers

Answer:

The maxillary sinus, that is, the sinus located in the upper jaw, would be affected.

Explanation:

Sinusitis is a very traditional disease that is associated with headache, discomfort, and increased mucus making.

The causes can be viral or bacterial or even by some inhaled noxa, sinusitis of this type is bilateral, different from sinusitis of dental cause that are usually unilateral.

The paranasal sinuses are the sinuses that pneumatize the head, that is, they generate an internal air current in the bones to be able to heat and disinfect them from those noxas that are inhaled (that is why they are covered by a ciliated mucosa that drags the noxa to the outside and also its structure is pseostratified with mucous cells that secrete mucus enveloping the noxa).

Another function of the paranasal sinuses is to be able to alleviate the weight of the head, since the shell and the bones that remain in the head formation are very heavy, thus generating these cavities filled with air to alleviate the feeling of "heavy head" "When they become inflamed and filled with mucus, they are obliterated or with a reduced space, so the head feels heavier for some people.

The paranasal sinuses are the maxillary sinuses that are in the upper jaw, the sphenoid sinuses that are in the sphenoid, the ethmoid sinuses that are in the ethmoid and the frontal ones that are in the frontal bone that is vulgarly called as the forehead.

What three different genotypes are possible for an individual in this population

Answers

Answer:

With alleles 'A' and 'a' there are three possible genotypes AA, Aa and aa

Explanation:

Pls mark as brainliest answer

Which characteristic is one of the three main characteristics used to classify igneous rocks?

Answers

Answer: Texture

Explanation:  the rate at which the rock had cooled when molten magma was cooling gives out a clear comparrison of the rocks which is the texture

Answer:

Explanation:

Texture

Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. How would you conduct your investigation? In your answer, explain your independent and dependent variable?

Answers

Answer:

The student has observed that artificial fertilizer makes his plants grow faster and taller than plain soil. He knows that compost is a natural fertilizer. So, he infers that compost will make his plants grow at a faster rate than they grow in plain soil.

Explanation:

Collections of lymphoid tissues, called MALT, are strategically placed throughout the respiratory, digestive, and genitourinary systems. Which one of these is located at the end of the small intestine?
a) appendix
b) Peyer's patches
c) tonsils

Answers

B) Peyer’s patches. Located in the mucosa and extend to the submucosa of the small intestine

What is the main function of the human immune system?
O A. To protect internal organs and assists in movement
O B. To collect and respond to information about the internal and
external environment
O C. To protect the body against infection
D. To transport oxygen and nutrients to the body's tissues

Answers

Answer:

to protect the body from infection

answer the questions above​

Answers

Answer:

Hey there!

3) Well injection is usually done through the vein because they need the substance to go into the blood.

4) Some people believe that the heart is on the left side because its the left ventricle and atrium responsible and when people hear left they think the heart is on the left.

5) People living in high altitudes don't get as much oxygen so their bodies evolved into carrying ,more RBC so more oxygen is carried into their bodies.

Hope this helps :)

The images show fossils of a modern bird and two extinct organisms( a Tyrannosaurus rex and archaeopteryx). Based on the structure of the three organisms, it can be concluded that blank . The archaeopteryx and have wings, while dinosaurs have limbs. So, it can be concluded that blank.

Answers

Answer:

Many individuals consider that Archaeopteryx would have been the first bird, however, many paleontologists are against it. The findings of many fossils of Archaeopteryx have revealed that though the creature exhibited wings, the majority of its characteristics were of reptile, like the existence of full teeth set. Apart from this, the wings formation of the creature demonstrated that it was not completely capable of flying.  

No matter what, the presence of wings makes them closely associated with the modern time birds. Thus, it can be concluded that Archaeopteryx could be considered as an intermediate between the reptiles and the birds and is a precursor to the modern-day birds' evolution.  

What is the type of mouth part found in the female anopheles?

Answers

Answer:

Piercing and sucking mouthpart

Explanation:

Hope it helps.

what is scientific advancement? describe characteristics

Answers

Scientific or technological advancement is the generation of information or the discovery of knowledge that advances the understanding of scientific relations or technology. This definition encompasses the definition of scientific advancement, advancement of scientific knowledge and technological advancement. The only difference is that scientific advancement and advancement of scientific knowledge relate to science whereas technological advancement relates to technology.

The cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge?

Answers

Answer

The correct answer is option D, that is, cell produce through the spontaneous generation.

Rate me please :):)

It is now recognized that life originates from prior life and that cells originate from preexisting cells as a result of experiments and the discovery of the microscope. Thus, option D is correct.

What is original cell theory?

All living things are made up of one or more cells, which is one of the three principles of the cell theory. The fundamental unit of structure and organization in organisms is the cell.

While doing studies on tissues in the late 1830s, zoologist Theodor Schwann and botanist Matthias Schleiden proposed the united cell theory.

The unified cell theory states that each living thing is composed of one or even more cells, every cell is the basis of life, and new cells can be created from existing cells.

Therefore, cell produce through the spontaneous generation.

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What is the function of the central nervous system?
O A. To circulate blood throughout the body
O B. To relay signals from the spinal cord to the rest of the body
O C. To transport oxygen and nutrients to the brain
D. To process information about changes in the external or internal
environment

Answers

Answer:

To transport oxygen and nutrients to the Brian

which of the following adaptions allowed plants to transport water and nutrients from the soil to all of the cells within the plant?
A. Vascular system
B. Leaves
C.Cuticle
D. circulatory system

Answers

Answer:

c

Explanation:

I took the test

Answer:

D. circulatory system

Explanation:

Circulatory system is the method of transport of plants and animals. It gives the plants nutrients and carbon dioxide in every cell and release waste products from their system.

Help pls. ive been stuck on this for a long time

Answers

Answer

Tundra: lichens and moose

Taiga: cone-bearing evergreens and timberwolves

Deciduous Forests: broad leafed trees and ptarmigans

Grasslands: grasses and hyenas

Rainforests: air plants and parrots

Desert: succulent plants and dingo dogs

hope it helps

What does the theory of plate tectonics state about the earth?

A. The inner core is divided into plates that glide under the mantle.

B. The inner core is made up of a mantle that is covered by plates.

C. The outer shell is divided into plates that glide over the mantle.

D. The outer shell is made up of a mantle that sits on top of plates.

Answers

Answer:

A & B are wrong so it's either C or D and I chose C

Explanation:

Because the theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle.

Tachycardia, decreased or absent breath sounds on the affected side, hyperresonance, and sudden chest pain on the affected side are clinical manifestations of:__________
A) Sarcoidosis
B) Pneumothorax
C) Hypersensitivity pneumonitis
D) adult respiratory distress syndrome

Answers

Answer: Option B.

Pneumothorax

Explanation:

Pneumothorax occurs when air buildup between the chest wall and the lungs thereby leading to increased pressure in the chest and it inturn decrease the amount of blood that flow back to the heart because the blood find it difficult to force it's way into the chest and the heart. This is cause by injury to the chest, lung danage, rupture air blisters and mechanical ventilation.

The symptoms include decreased or absent breath sounds on the affected side, hyperresonance, and sudden chest pain on the affected side , racing heart, shock.

When a pneumothorax is large, a needle or tube is used to remove excess air.

How does the cell wall protect a plant cell? A) The cell wall protect the cell by providing support and maintaining the cell's shape. B) The cell wall protects the cell by storing food so the plant doesn't run out. C) The cell wall is thin and flexible, which allows the cell to be moved without harming the organelles. D) The cell wall is on inside of the cell and serves to contain the contents of the cell.

Answers

Answer: the cell wall protects the cell by providing support and maintaining the cells shape

Explanation:

The cell wall protects the cell by providing support and maintaining the cell's shape.

CELL WALL:

The cell wall is a structure found in certain cells like plant cells, Bacteria cell etc. The cell wall is located outside the cell and bounds the cell content.

The cell wall of plants majorly contain a polysaccharide called cellulose. The cellulose content of plants cell wall is responsible for its protective function by giving the cell a rigid shape.

The plant cell wall helps protect the plant cell by providing support and maintaining the cell's shape.

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Name and explain the archetypes illustrated in the myth of Cupid and Psyche.

Answers

Answer:

Underneath is provided the archetypes depicted throughout the Cupid as well as Psyche myths.

Explanation:

The Cupid as well as Psyche myth seems to be an illustration of many other archetypes. Initially, it seems to be using the Tasks as well as Tests particular circumstance archetype something which Psyche should therefore accomplish. Psyche herself would be an instance of both the individual Ingénue and perhaps Maiden. She also seems to be naturally beautiful and then becomes a smart teenage girl. Venus has always been depicted with her impossible demands as that of the evil queen, or Stepmother.

The story brought to mind many characters of situations:

Beauty and BeastThe cuddle of eternal loveThe faith and nature of life are indeed visible in this story.

Such as the above story, Psyche appears to believe that she'll be wanted to send to have been the bride of such a terrifying dragon who conceals from her after week as well. Very much like that novel, she was therefore persuaded by her sisters to deceive himself, who forced herself to inform on him. Cupid waking someone up from her deep sleep is like the conventional Touch of true soul mate administered by innumerable royalty to activate respective princesses. However, when Psyche has always been helped make immortal, the power of prayer overcomes everything so that the two main characters can indeed be formed forever.

What is Aquatic Habitat​

Answers

habitat is physical enviroment in 2hich an animal or plant is usually found.

Answer:

An aquatic habitat is a habitat with water. It includes areas that are permanently covered by water and surrounding areas that are occasionally covered by water. Estuaries, rivers, and marshes are examples of aquatic habitats.

Explanation:

An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems.

Good luck. ... Brainliest please

What is Mary and Jim’s hypothesis?

Answers

Answer:

In this case, the scientist want to test the presence of the limonite in the yellow rocks, So, proposed hypothesis should include the color of rock they want to observe and the posssible outcome, which need to be tested. So, a proposed hypothesis can be: The rocks, which have yellow color are made up of mineral lime.

Answer:

They hypothesized that the rock includes large pieces of the mineral limonite.

Explanation:

...

Q23 Which of the following describes the correct relationship between heart sounds and blood pressure? A.Systolic blood pressure is associated with the first heart sound. B. Systolic blood pressure is associated with the second heart sound. C. Diastolic blood pressure is associated with the first heart sound. D. Diastolic blood pressure is associated with the second heart sound.

Answers

Answer:

diolostic blood preasure is associated with the second heart sound

Explanation:

Korotkoff sounds are the sounds heard by the health professional who measures the blood pressure with a blood pressure monitor and a stethoscope placed on the patient's brachial artery.

Korotkoff described five types of noise:

* The first sound is a snap corresponding to the systolic pressure. The noise is clear, repetitive on at least two consecutive systoles.

* The second sound is a soft whisper, more or less prolonged, audible between the systolic pressure and the diastolic pressure.

What usually happens to the host’s DNA during the lytic cycle? It is destroyed. It is integrated with the viral DNA. It becomes a provirus. It is deactivated.

Answers

Answer:

It is destroyed

Explanation:

The lytic cycle of the viral life cycle is characterized by the destruction of the host's DNA. The infecting phage gains entrance into the host's cell synthesizes proteins that break down the host's DNA, and then utilizes its own DNA as the cellular DNA.

From there on, the phage takes over the cell's genetic mechanisms and utilizes it in the synthesis of the necessary proteins to manufacture new infecting structures.

Answer:

destroyed

Explanation:

Name the important endocrine glands present in our body

Answers

Answer:

The hypothalamus, pituitary gland, and pineal gland are in your brain. The thyroid and parathyroid glands are in your neck. The thymus is between your lungs, the adrenals are on top of your kidneys, and the pancreas is behind your stomach.

Explanation:

Hope this helps.

The endocrine system is made up of the endocrine glands that secrete hormones. Although there are eight major endocrine glands scattered throughout the body, they are still considered to be one system because they have similar functions, similar mechanisms of influence, and many important interrelationships.

These include...

Hypothalamus.

Pineal Gland.

Pituitary Gland.

Thyroid.

Parathyroid.

Thymus.

Adrenal.

Pancreas.

You are designing a sustainable living space for the Mars Colony Mission. The colony will have plants growing inside of it
to recycle the carbon dioxide. You need to determine what type of lighting will be most beneficial to the plants. First you
pick a small set of sample plants and grow each in a different lighting. What is the BEST way to measure their
effectiveness?
Question Progress a
A. Measure the oxygen produced by the plant using a gas syringe,
B. Measure the pigment density in the leaves using a spectrophotometer,
C. Measure the carbon dioxide produced by the plant using a gas syringe.
DAMeasure the height of the plant with a ruler.

Answers

Answer:

Option A is the most appropriate answer.

Explanation:

The arrangement has plants being drenched in a water container to discharge Oxygen gas that is freed and gathered in a tube placed previously. The volume of gas gathered can be utilized to find out the rate of photosynthesis and whenever coupled by methods for pH observing gadget, an expansion in pH which shows soluble alkaline means that more oxygen yield. Along these lines, this method can be utilized to then again check CO2 levels. The gas syringe is utilized to permit the oxygen gas bubbles to be gathered at the known for evacuation and estimation purposes.

This photosynthometer is combined with a hydrogen carbonate indicator evaluating CO2 levels. At neutral levels in comparing with different cases, the shading is orange and there is a progressive change to yellow shading is CO2 focus is high. At low focus, the shading turns out to be a lot darker (purplish).

Thus, the correct answer is option A.

Answer:

A

Explanation:

use a gas test

A storm brings two formerly separated populations of beetles together. They look very similar. Under the biological species concept, which of the following would show that the two populations are different species?
A. One population breeds in spring, the other in fall.
B. Males of the two populations have different flight patterns in courtship.
C. When individuals from the two populations mate with each other in the laboratory, the eggs fail to hatch.
D. All of the above is correct.
E. None of the above is correct.

Answers

Answer:

The correct option is D: All of the above is correct.

Explanation:

The biological species concept says that species are population groups that, in a real or potential way, can reproduce among each other and that are reproductively isolated from other groups.

Individuals belonging to a species cannot mate with members of other species, and if they do there is not any reproductive success.    

The mechanisms of reproductive isolation might be divided in prezygotic and postzygotic.

Prezygotic or Premating mechanisms:

Ecological or due to habitat isolationSeasonal or temporal. This is the case described in option A "One population breeds in spring, the other in fall". These species are reproductively isolated because they differ in their breeding season.Sexual or ethological. This is the case described in option B "Males of the two populations have different flight patterns in courtship". Males belonging to each species behave differently during courtship. MechanicalGametes incompatibility

Zygotic or Postmating Mechanisms:

Hybrid inviability. This is the case described in option C which states that "When individuals from the two populations mate with each other in the laboratory, the eggs fail to hatch". Eggs fail to hatch because the zygote is inviable. Hybrid sterilityHybrid decreased fertility

Will try to give brainliest PLEASE HELP ASAP
What are the three stop codons? What is the start codon?

Answers

Answer:

UGA, UAA, and UAG

Explanation:

Each three-letter sequence of mRNA nucleotides corresponds to a specific amino acid, or to a stop codon. UGA, UAA, and UAG are stop codons

Answer:not sure

Explanation:

Not sure

Other Questions
What is mA? please help Which of the following metals has a low melting point?2 A. RubidiumB. PotassiumC. CalciumD. Sodium how many moles are in 8.5 x 10^25 molecules of CO2 -----------------> 10x - 3 - 2x = 4 Easy Spanish easy points please solve these questions for me. i am having a difficult time understanding. The biomass B(t) of a fishery is the total mass of the members of the fish population at time t. It is the product of the number of individuals N(t) in the population and the average mass M(t) of a fish at time t. In the case of guppies, breeding occurs continually. Suppose that at time t = 5 weeks the population is 824 guppies and is growing at a rate of 50 guppies per week, while the average mass is 1.3 g and is increasing at a rate of 0.14 g/week. At what rate is the biomass increasing when t = 5? (Round your answer to one decimal place.) B'(5) = g/week Write a function named twoWordsV2 that has the same specification as Problem 1, but implement it using while and not using break. (Hint: provide a different boolean condition for while.) Since only the implementation has changed, and not the specification, for a given input the output should be identical to the output in Problem 1. Find the.equation of the line through point (-4,1) and parallel to y=-1/2x -2 On which subject did the narrator think deeply in the evening?? The story Jamaican Fragment A mass M = 4 kg attached to a string of length L = 2.0 m swings in a horizontal circle with a speed V. The string maintains a constant angle \theta\:=\: = 35.4 degrees with the vertical line through the pivot point as it swings. What is the speed V required to make this motion possible? The inner and outer surface temperature of a glass window 10 mm thick are 25 and 5 degree-C, respectively. What is the heat loss through a 1 m x 3 m window Medical implants and high-quality jewelry items for body piercings are frequently made of a material known as G23Ti or surgical-grade titanium. The percent composition of the material is 64.39% titanium, 24.19% aluminum, and 11.42% vanadium. What is the empirical formula for surgical-grade titanium Thomas Textiles Corporation began November with a budget for 60,000 hours of production in the Weaving Department. The department has a full capacity of 75,000 hours under normal business conditions. The budgeted overhead at the planned volumes at the beginning of November was as follows:Variable overhead $450,000Fixed overhead 262,500Total $712,500The actual factory overhead was $725,000 for November. The actual fixed factory overhead was as budgeted. During November, the Weaving Department had standard hours at actual production volume of 64,500 hours.Determine the variable factory overhead controllable variance and the fixed factory overhead volume variance. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. Round your interim computations to the nearest cent, if required.a. Variable factory overhead controllable variance: $ b. Fixed factory overhead volume variance: $ When separated by distance d, identically charged point-like objects A and B exert a force of magnitude F on each other. If you reduce the charge of A to one-half its original value, and the charge of B to one-tenth, and reduce the distance between the objects by half, what will be the new force that they exert on each other in terms of force F A randomized study compared two drugs thatare designed to lower a person's triglyceridelevel. It was found that over a 1-year period,those receiving Drug A decreased theirtriglyceride level by a mean of 69. Thosereceiving Drug B decreased their triglyceridelevel by a mean of 45.To determine whether the results are significant,the data are rerandomized and the difference ofthe means is shown in the dot plot.What is the best conclusion to make based onthe data? A special tool manufacturer has 50 customer orders to fulfill. Each order requires one special part that is purchased from a supplier. However, typically there are 2% defective parts. The components can be assumed to be independent. If the manufacturer stocks 52 parts, what is the probability that all orders can be filled without reordering parts The karyotype reveals that the aliens have a total of 200 chromosomes in each somatic cell. Assuming this alien reproduces sexually, how many chromosomes would its gametes have? 5. A nail contains trillions of electrons. Given that electrons repel from each other, why do they not then fly out of the nail? The formula for any geometric sequence is an = a1 rn - 1, where an represents the value of the nth term, a1 represents the value of the first term, r represents the common ratio, and n represents the term number. What is the formula for the sequence 2, -6, 18, -54, ...? an = 2 3n - 1 an = 2 (-3)n - 1 an = 3 2n - 1 an = -3 2n - 1