Answer:D
Explanation:
Answer:
Mass extinction
Explanation:
This mass introduction of new fossils points to a preceding mass extinction where many of the existing species died off.
How are giraffes able to feed on an acacia tree despite the tree's long thorns?
A. Giraffes don't eat acacia trees.
B. Giraffes have a long neck that they can maneuver between the thorns.
C. Giraffes have a long, mobile tongue that can maneuver between the thorns.
D.Giraffes produce saliva that dissolves the thorns.
Answer:
C. Giraffes have a long, mobile tounge that can maneuver between the thorns.
Explanation:
I took the test :D
Should humans use synthetic materials that have natural material that is the same chemically? PLZ I NEED THIS NOW
Answer:
It Depends . Like Some People Use Fake Skin For Tattoos , Made To Practice Stitches , Or Injections .. It Just Really Depends On What You Are Doing If This Helps ..
How did NASA help to uncover the adaptations that are made due to living in extreme environments?
By analyzing changes in one twin on Earth and the other in space.
By introducing animals and other organisms that could be studied in space.
By running experiments on astronauts that were in space for over a year
By observing changes in retired astronauts over a period of ten years.
Answer:
A
Explanation:
I took this at flvsa lol
the gas made by respiratin is called what
where do trees get nutrients to grow
Answer:
Photosynthesis a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities
they need sun water and CO2
Explanation:
Plz help me well mark brainliest if you are correct!
Answer:
Explanation:
Uh this is gonna be kinda hard cause they are all examples of renewable resources. . .
but I would just say go with what the other pearson said :D
Rainforests are not found in
a. Alaska
b. Greenland
C. Australia
d. Africa
Please select the best answer from the choices provided
A
B
C
D
Answer:
B. Greenland
Explanation:
Rainforests are found in Alaska, Australia, and Africa, but not Greenland.
The Offspring produced by a cross between two given types of plants can be any of the three genotypes denoted by A, B, and C. A theoretical model of any of the three genotypes denoted by A, B, and C should be in the ratio 1:2:1. For experimental verification, 100 plants are bred by crossing the two given types. Their genetic classifications are recorded. Do these data contradict the genetic model
Complete question:
The offspring produced between two given types of plants can be any of the three genotypes, denoted by A, B and C. A theoretical model of gene inheritance suggests that the offspring of types A, B and C should be in a 1:2:1 ratio (meaning 25% A, 50% B, and 25% C). For experimental verification, 100 plants are bred by crossing the two given types. Their genetic classifications are recorded in the table below.
Genotype Observed frequency
A → 18 individuals
B → 55 individuals
C → 27 individuals
Do these contradict the genetic model?
Use a 0.05 level of significance.
Determine the chi-square test statistic.
Answer:
Do these contradict the genetic model? No, according to the chi-square test, there is not enough evidence to reject the null hypothesis of the population being in equilibrium.
Explanation:
Available data:
Crossed genotypes: twoGenotypes among the offspring; Three → A, B, and CExpected phenotypic ratio → 1:2:1Total number of individuals, N = 100A = 18 individualsB = 55 individualsC = 27 individualsSo, let us first state the hypothesis:
H₀= the population is equilibrium for this locus → F(A) = 25%, F(B) = 50%, F(C) = 25% H₁ = the population is not in equilibriumNow, let us calculate the number of expected individuals, according to their expected ratio.
4 -------------- 100% -------------100 individuals
1 --------------- 25% -------------X = 25 individuals A
2 -------------- 50% -------------X = 50 individuals B
1----------------- 25%--------------X = 25 individuals C
A B C
Observed 18 55 27 Expected 25 50 25 (Obs-Exp)²/Exp 1.96 0.5 0.16(Obs-Exp)²/Exp
A) (18 - 25)²/25 = 49/25 = 1.96
B) (55 - 50)² / 50 = 25/50 = 0.5
C) (27 - 25)²/25 = 4/25 = 0.16
Chi square = X² = Σ(Obs-Exp)²/Exp
∑ is the sum of the terms O are the Observed individuals: 2 in chamber B, and 18 in chamber A. E are the Expected individuals: 10 in each chamberX² = ∑ ((O-E)²/E) = 1.96 + 0.5 + 0.16 = 2.62
Freedom degrees = 2
Significance level, 5% = 0.05
Table value/Critical value = 5.99
X² < Critical value
2.62 < 5.99
These results suggest that there is not enough evidence to reject the null hypothesis. We can assume that the locus under study in this population is in equilibrium H-W.
Submit your summary about a federal law and a summary about a state law. Remember to proofread your work before submitting.
. The average adult (like Hank) is _________% water, ________% protein, _______% fat, _______% minerals, and _______% carbohydrates. 2. All the macromolecules that make you up come from ______________________________. 3. __________________________ reactions destroy the reactants that you give them, making big, complex substances smaller and __________________________ reactions reassemble the smaller products into new, bigger products. The processes behind these two sets of reactions make up your
Answer:
1. 62 percent water, 16 percent fat, 16 percent protein, 6 percent minerals, and less than 1 percent carbohydrate, along with very small amounts of vitamins and other miscellaneous substances.
2. Food.
3. Catabolic, Anabolic, Metabolism
What do all animals, including vertebrates and invertebrates, have in common?
Question 1 options:
They have backbones, internal skeletons, and muscles.
They are heterotrophs that must get their food from plants or other animals.
They have lungs or gills for breathing.
They are endothermic (warm-blooded).
Question 2 (1 point)
Saved
All animals share several common characteristics. Which is a characteristic shared by all animals?
Question 2 options:
endoskeletons and muscles
sensory organs and backbones
multi-cellular bodies
exothermic blood systems
Question 3 (1 point)
Sam’s teacher asked him to make observations about animals at the zoo. Sam went to the zoo and filled in these two charts that the teacher gave him.
What is the main difference between the species in Group 1 and Group 2?
Question 3 options:
Group 1 has small organisms, Group 2 has large organisms.
Group 1 are endothermic, Group 2 are exothermic.
Group 1 are vertebrates, Group 2 are invertebrates.
Group 1 has exoskeletons, Group 2 has soft bodies.
Question 4 (1 point)
Which of the following is a characteristic of all mammals?
Question 4 options:
lungs
hair
tail
both 1 and 2
Question 5 (1 point)
What is the benefit of an arthropod’s exoskeleton.
Question 5 options:
It allows arthropods to breathe.
It protects and supports the arthropod’s body.
It allows the arthropod to get food.
It allows the arthropod to see far distances.
Question 6 (1 point)
What do arthropods and segmented worms have in common?
Question 6 options:
They both have segmented bodies during some stage of their life.
They both have hard outer shells that are unmovable.
They both have bones and vertebrae.
They both lack any sense organs.
Question 7 (1 point)
To which group of invertebrates do cephalopods, such as squids, belong?
Question 7 options:
Arthropods
Echinoderms
Cnidarians
Mollusks
Question 8 (1 point)
Sweat glands, fur, and feathers are found on an endotherm.
Question 8 options:
True
False
Question 9 (1 point)
Vertebrates and invertebrates differ in the presence of a backbone. Another characteristic that distinguishes most vertebrates from many invertebrates, is that vertebrates —
Question 9 options:
have a relatively well-developed brain and circulatory system.
have long tube-like bodies that are divided into segments.
take in oxygen from their skins rather than from an inside organ.
have hard outer covering called exoskeletons.
Question 10 (1 point)
During chilly days, you might notice lizards lying (“basking”) in sunny areas. Why do lizards bask in the sun?
Question 10 options:
Ectothemic animals are lazy and the sun puts them to sleep.
Ectothermic animals need to get tanned by the sun's rays for camouflage.
Ectothermic animals use the suns rays to help them hide from enemies.
Ectothermic animals need the warmth from the sun to allow them to move around and hunt for food.
Question 11 (1 point)
Which group of animals could be correctly classified as endothermic?
Question 11 options:
robin, squirrels, mice
bears, snakes, wolves
frogs, lizards, snakes
groundhogs, hawks, crab
Question 12 (1 point)
Using the table, which statement is true?
Question 12 options:
Organisms in both Groups A and B have similar mechanisms for controlling their internal temperatures.
Organisms in Group A have fewer mechanisms for controlling their internal temperatures than those in Group B.
Organisms in both Group A and B usually coexist peacefully.
Organisms in both Group A and B are extinct species.
Question 13 (1 point)
How do “warm-blooded” animals cool off?
Question 13 options:
They convert the food they eat into cool energy.
They sweat or pant to lose heat by water evaporation.
They move to colder climates.
They move around a lot to stimulate their circulation.
Question 14 (1 point)
An animal takes on the temperature of their surroundings so they don't have to use food energy to keep warm. This means they don’t have to eat as often. They are considered an __?
Question 14 options:
Endotherm
Ectotherm
Question 15 (1 point)
Which of these factors is used to classify the different organisms on Earth into Kingdoms (such as protists, fungi, plant, animals, and bacteria) ?
I Number of cells in the organism
II How the organism obtains energy
Question 15 options:
I only
II only
I and II
Question 16 (1 point)
It's sunny in New York, but it is cool. Where would you expect to find this lizard during the day?
Question 16 options:
Under a rock
In a damp stream bed
Basking in a sunny spot
In a hole in the ground
Answer:
the first one is correct
Explanation:
all a
1. What do all animals, including vertebrates and invertebrates, have in common?
They have backbones, internal skeletons, and muscles.
2. All animals share several common characteristics. Which is a characteristic shared by all animals?
Endoskeletons and muscles.
3. Which of the following is a characteristic of all mammals?
both 1 and 2.
4. What is the benefit of an arthropod’s exoskeleton.
It protects and supports the arthropod’s body.
5. What do arthropods and segmented worms have in common?
They both have segmented bodies during some stage of their life.
6. Sweat glands, fur, and feathers are found on an endotherm?
True.
7. Vertebrates and invertebrates differ in the presence of a backbone. Another characteristic that distinguishes most vertebrates from many invertebrates, is that vertebrates?
Take in oxygen from their skins rather than from an inside organ.
8. During chilly days, you might notice lizards lying (“basking”) in sunny areas. Why do lizards bask in the sun?
Ectothermic animals need the warmth from the sun to allow them to move around and hunt for food.
9. Which group of animals could be correctly classified as endothermic?
Robin, squirrels, mice.
10. How do “warm-blooded” animals cool off?
They sweat or pant to lose heat by water evaporation.
11. An animal takes on the temperature of their surroundings so they don't have to use food energy to keep warm. This means they don’t have to eat as often. They are considered an __?
Ectotherm.
Thus, these are the answer to the following questions.
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The average adult (like Hank) is _________% water, ________% protein, _______% fat, _______% minerals, and _______% carbohydrates. 2. All the macromolecules that make you up come from ______________________________. 3. __________________________ reactions destroy the reactants that you give them, making big, complex substances smaller and __________________________ reactions reassemble the smaller products into new, bigger products. The processes behind these two sets of reactions make up your
Answer: 64% water, 14% protein, 16% fat, 4% minerals 1% carbohydrates
Explanation:
It’s what he says in the video
1. 64% water, 14% protein, 16% fat, 4% minerals and 1% carbohydrates
2. Macromolecules come from Food
3. Catabolic, Anabolic, and Metabolism
What do you mean by metabolism?Metabolism is the set of life-sustaining chemical reactions in organisms. The three main purposes of metabolism are: the conversion of the energy in food to energy available to run cellular processes.
Moreover, it is the process by which the body changes food and drink into energy. During this process, calories in food and drinks mix with oxygen to make the energy the body needs. Even at rest, a body needs energy for all it does.
Hence, if your metabolism is "high" (or fast), you will burn more calories at rest and during activity. A high metabolism means you'll need to take in more calories to maintain your weight. That's one reason why some people can eat more than others without gaining weight.
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check this for me pls
Answer:
it's both A and B for your answer
Explanation:
both genders can get this disease since it's being past down to their children or offspring, some may get that gene and some might not.
The main function of cell respiration is to produce A. glucose B. NADH and FADH2. C. CO2. D.mitochondria E. ATP.
Again No links thank you!
The gulf flounder is a fish that is found in the Gulf of Mexico. It
migrates between estuaries and the open ocean. It prefers to live
in water with > 2% salinity, though can tolerate a wide range of
salinity, from 0.5% to 4%.
Choose the correct statement about the gulf flounder.
The gulf flounder is stenohaline.
The gulf flounder prefers to live in freshwater over saline water.
The gulf flounder possesses the ability to prevent the intake of
excess salt.
The gulf founder is not found in brackish water.
Answer: the gulf flounder possesses the ability to prevent the intake of excess salt
Explanation:
I did the tutorial
For each - choose either peroxisome or lysosome, both or neither Group of answer choices uses hydrolases lysosome uses the enzyme catalase peroxisome is one of the main sites of fatty acid breakdown peroxisome combines with endosomes to digest ingested matter lysosome capable of converting hydrogen peroxide to water and oxygen peroxisome destroys engulfed bacteria both lysosome and peroxisome main role is metabolism both lysosome and peroxisome digestive interior is acidic lysosome proteins are derived from the endoplasmic reticulum
Answer:
Uses hydrolases -lysosome
Uses the enzyme catalase- peroxisome
Is one of the main sites of fatty acid breakdown- peroxisome
Combines with endosomes to digest ingested matter- lysosome
Capable of converting hydrogen peroxide to water and oxygen- peroxisome
Destroys engulfed bacteria- lysosome
Main role is metabolism- both lysosome and peroxisome
Digestive interior is acidic- lysosome
Proteins are derived from the endoplasmic reticulum- Peroxisome
Explanation:
The lysosome is a membrane-bound organelle found within a cell whose main function is to ensure the break down of biological polymers, such as proteins and polysaccharides. It is comprised of enzymes that are degradative in nature that can degrade biological polymers such as proteins, nucleic acids, lipids, etc. They contain various types of hydrolytic enzymes such as proteases, nucleases, glycosidases, lipases, phospholipases, phosphatases, and sulfatase. These enzymes are acid hydrolases as they function in the acidic environment of the lysosome. Lysosomes are also used by the cell to destroy invading viruses and bacteria.
Peroxisomes are membrane-bound organelles found within the cytoplasm of a cell. They are derived from the edoplasmic reticulum. Peroxisomes are involved in lipid biosynthesis, for example, cholesterol and dolichol are synthesized in peroxisomes. Peroxisomes are also involved in the synthesis of bile acids from cholesterol.
Peroxisomes contain enzymes that oxidize fatty acids and amino acids. Peroxisomes also contain enzymes such as catalase that convert hydrogen peroxide to water and oxygen preventing oxidative damage by these reactive oxygen species.
PLEASE HELP WILL GIVE BRAINLIEST
In what order do species appear during primary and
secondary succession?
Answer:
here you go :)Explanation:
Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited. In other words, it is the gradual growth of an ecosystem over a longer period of time.
In the primary succession, species like algae, fungi, and lichens are preset. In the secondary succession, the pioneer species present, that already existed in the environment.
What are primary and secondary succession?One of two types of biological and ecological succession of plant life. They are primary succession that takes place in environments where fresh substrate is deposited that is devoid of plants and other species that typically lack soil, such as lava flows or areas left behind from glaciers that have receded.
In other words, it is the steady development of an ecosystem through time.
Thus, Algae, fungus, and lichen species are established during the primary succession. The pioneer species that were previously existing in the habitat are found in the secondary succession.
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Which tectonic plate lies underneath the starred region? *
A. African
B. Pacific
C. Indo-Australian
D. Eurasian
Answer: B
Explanation:
Which type of weather do anticyclones bring?
Answer:
i think anticyclone weather bring us lots of cold weather and snow
Answer:
Anti cyclone bring us very cold, crisp bright winter days and warm sunny summer weather.
Explanation:
Plants have many characteristics. What is responsible for these characteristics? Select all that apply. inherited from parents inherited by sibling plants affected by the environment affected by soil position
Answer: Select A,B,D that’s the answer
Explanation: thank me! Your welcome!
list the excretory organs of the human body and state the substance they excrete
The temperate grasslands biome includes regions of several continents. What do all of the regions have in common? A. the same species of grazing animals B. the same species of grasses C. the same seasonal patterns of temperature and precipitation D. the same amount of land that is covered in grasses
Answer:
C
Explanation:
temperate biomes have a pretty stable climate
Sleet forms directly from which type of precipitation?
A. Snowflakes
B. Hail
C. Rain drops.
D. Dust
Answer:
C
Explanation:
Sleet is pellets of ice that form when snow falls into a warm layer and melts into rain. The rain then falls into a freezing layer of air that is deep enough to refreeze the raindrops into pellets
What influences other than humans affect genetic drift in populations?
Answer:
Every population experiences genetic drift, but small populations feel its effects more strongly. Genetic drift does not take into account an allele's adaptive value to a population, and it may result in loss of a beneficial allele or fixation (rise to 100% frequency) of a harmful allele in a population.
Explanation:
Hurry!!! Timed!! Do NOT answer with a link!!!
Which statements describe gene therapy? Check all that apply.
A. It cures all cases of cystic fibrosis.
B. It involves the modification of DNA. C. It is easy to apply to all cells affected by the disorder.
D. It attempts to replace a mutated gene with normal DNA. It does not always cure patients who use it.
Answer: B, D
Explanation:) edge 2022
Recall in class the example of incorporating heavy or light nitrogen labels into DNA to investigate how DNA is replicated. Imagine if, instead of labeling DNA, the experiment used heavy labeled RNA bases. What would be the outcome if you examined the DNA strands after completion of DNA replication in the presence of heavy labeled RNA bases?
Answer: You would not notice any difference or any labeled base, because RNA is not used to make DNA.
Explanation:
DNA is a molecule that contains the genetic information in all living things. The molecule consists of two strands that wind around each other to form a double helix structure where the strands are joined by hydrogen bonds. It is a nucleotide polymer where each nucleotide consists of a sugar called deoxyribose, a nitrogenous base (which can be adenine, thymine, cytosine or guanine) and a phosphate group (derived from phosphoric acid). What distinguishes one polynucleotide from another, is the nitrogenous base and thus the sequence of DNA is specified by naming only the sequence of its bases. The sequential arrangement of these four bases along the chain is what encodes the genetic information.
Consider that DNA replication is semi-conservative, which means that each strand of the DNA double helix functions as a template for the synthesis of a new complementary strand. This process leads from one starting molecule to two "daughter" molecules, in which each new double helix contains one new and one old strand. Then, if nitrogen tags are incorporated into the DNA, they will register on the old strand of the new DNA molecule.
On the other hand, RNA (ribonucleic acid) is a molecule similar to DNA but has only one strand and consists of a sugar (ribose) and alternating phosphate groups. Attached to each sugar is one of the four bases adenine, uracil, cytosine or guanine. The process of RNA synthesis, called transcription, consists of making a complementary copy of a piece of DNA. During this process, an enzyme called ARN polymerase, adds nucleotides that are complementary to the DNA strand. Then, this new RNA strand has new nucleotides. Thereby, if you examine the DNA strands after completion of DNA replication in the presence of heavy labeled RNA bases, you would not notice any difference or any labeled base, because RNA is not used to make DNA.
Help pleasee | A damselfly nymph sheds its skin several times, as it grows into an adult. Which statement explains why it does this? No links!!!
A. It is a mammal.
B. It is an invertebrate.
C. It goes through complete metamorphosis.
D. It goes through incomplete metamorphosis.
Answer:
D. It goes through incomplete metamorphosis.
Explanation:
Damselflies do not hide away inside a pupa to transform into their adult form. Instead, they shed their skin several times as they grow, changing shape a little each time. This process is called incomplete metamorphosis.
Matter constantly cycles through the earth's spheres using many different processes. Photosynthesis and cellular respiration are
two important processes in this cycling of matter. The products of photosynthesis are reactants in cellular respiration. The
products of cellular respiration are the reactants of photosynthesis. This model shows the cycling of matter through these cycles.
The model is unlabeled. Correctly label the products and reactants of cellular respiration. Choose ALL that apply.
A)
A = ATP
B)
B = CO2 + H20
C
A = C6H1206
D)
D = 02 + C6H1206
E)
B = 02 + C6H1206
Answer:
A) A = ATP
B) B = CO2 + H2O
D) D = O2 + C6H12O6
Explanation:
The process of photosynthesis and cellular respiration mutually depends on one another. In this diagram, A represents ATP, B represents C[tex]O_2[/tex] + [tex]H_2O[/tex], C represents sunlight, and D represents [tex]C_6H_1_2O_6 + O_2[/tex].
What do you mean by Photosynthesis?Photosynthesis may be defined as a process through which plants synthesize their own food with the help of carbon dioxide and water in the presence of sunlight.
Mitochondria release energy in form of ATP, while carbon dioxide and water serve as the reactant for photosynthesis. In presence of sunlight, they convert into glucose and oxygen which is the product of photosynthesis.
Both photosynthesis and cellular respiration mediate the cycling of matter like oxygen, glucose, carbon dioxide, etc.
Therefore, it is well described above.
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the process by which the characteristics of a species change over many generations in response to the environment
variation
variation
adaptation
adaptation
natural selection
natural selection
Evolution
what is ovary in plants?
Explanation:
Ovary, in botany, enlarged basal portion of the pistil, the female organ of a flower.
The ovary contains ovules, which develop into seeds upon fertilization.
The ovary itself will mature into a fruit, either dry or fleshy, enclosing the seeds.
Answer:
The ovary is the enlarged basal portion of the pistil, the female organ of a flower.
The ovary contains ovules, which develop into seeds upon fertilization. The ovary itself will mature into a fruit, either dry or fleshy, enclosing the seeds.
Explanation: