Answer:
Essential to the formation of all known life, evidence of stable liquid water elsewhere could indicate an environment beyond Earth that could sustain the formation of extraterrestrial life
Explanation:
If there is water on other plants, Mars for example, then that shows there may be a sign of living life or a opportunity for us.
Complete the chart and classify each organism.
Answer:
On the basis of similarities and differences.
Explanation:
We can classify the organisms on the basis of similarities and differences. There are five kingdoms i.e. Protista, Fungi, Monera, plantae and Animalia. Each kingdom has some unique characteristics so the organisms in the chart will be seen to which kingdom it belongs to see the similarities with them. If the organism is unicellular and eukaryotic organisms so it is placed in kingdom Protista, if the organism is plant like and having chlorophyll so it is placed in kingdom plantae and if the organism has the ability to move from place to place and heterotroph we can place it in kingdom Animalia.
help please!! much appreciated
Hormones and secretions of the nervous system are chemical messengers that:
A. store genetic information
B. carry out the circulation of materials
C. extract energy from nutrients
D. coordinate system interactions
Hormones and secretions of the nervous system are chemical messengers that:
D. coordinate system interactions
Hormones and secretions of the nervous system are chemical messengers coordinate system interactions. Thus, option "D" is correct.
What are Antidiuretic hormone?Antidiuretic hormone that is synthesized and produced in the brain by the hypothalamus, is secreted from the pituitary gland, where it is stored.
This hormone is released into the blood stream in response to changes in the water balance in the blood. This hormone helps the kidneys to control and regulate the amount of water in the blood
Thus, option "D" is correct, coordinate system interactions.
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A biology teacher takes fish, algae, pond weed, invertebrates, and bottom muck from a local pond and establishes them in an aquarium. When the system is stable, the teacher seals it into a large, airtight glass box and leaves the box in a sunny location. After three months, the organisms in the aquarium appear alive and healthy. Which of the following statements about the experiment is true?
a. During the three months, the biomass of animal life was greater than the biomass of plant life.
b. Some of the energy in the system has moved from one organism to another.
c. The air in the glass box contains no carbon dioxide.
d. No energy has entered or left the glass box.
Answer: B. Some of the energy in the system has moved from one organism to another during the three months.
Explanation:
Option A is incorrect as the biomass of plant life will be greater than that of animal life since plants are considered to be primary producers.
Option C is incorrect as the air in the glass box contains carbon dioxide which is necessary to synthesize glucose.
Option D is incorrect as energy has entered the glass box since it's in a sunny location which gives it energy from the sun.
The correct option is B "Some of the energy in the system has moved from one organism to another during the three months".
Circle FIVE keywords associated with transport of water and minerals in plants
Answer:
1) Suction
2) Root pressure
3) Transpiration
4) Xylem
5) Phloem
Explanation:
Answer:
XYLEM
TRACHEID
SUCTION
ROOT PRESSURE
TRANSPIRATION
Explanation:
What is the answer to this question
A breeder is trying to decrease the maturation time in a population of sunflowers. In this population, the mean time to flowering is 100 days. Plants with a mean flowering time of only 90 days were used to produce the next generation. If the narrow-sense heritability for flowering time is 0.2, what will the average time to flowering be in the next generation
Answer:
The next generation average time to flowering will be 98 days.
Explanation:
Before answering the question, we need to know a few concepts.
Artificial selection is the selecting practice of a specific group of organisms in a population -that carry the traits of interest- to be the parents of the following generations. Parental individuals carrying phenotypic values of interest are selected from the whole population. These parents interbreed, and a new generation is produced. The selection differential, SD, is the difference between the mean value of the trait in the population (X₀) and the mean value of the parents, (Xs). So,SD = Xs - X₀
Heritability in the narrow-sense, h², is the genetic component measure to which additive genetic variance contributes. The heritability might be used to determine how the population will respond to the selection done, R.h² = R/SD
The response to selection (R) refers to the metric value gained or lost from the cross between the selected parents. R can be calculated by multiplying the heritability h², with the selection differential, SD.R = h²SD
R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),
R = X₀ - X₁
-------------------------------------------------------------------------------------------------------------
Now that we know these concepts and how to calculate them, we can solve the proposed problem.
Available data:
trying to decrease the maturation time in a population of sunflowers.the population mean time to flower is 100 days → X₀Chosen parental Plants mean flowering time is 90 days → Xs the narrow-sense heritability for flowering time is 0.2 → h²According to what we sow previously, we need to find out the value of X₁, which reflects the next generation average time to flowering.
We know that R = X₁ - X₀, so we need to clear this formula to calculate X₁X₁ = R + X₀
We already know that X₀ = 100 days,
Now we need to calculate R.
R = h²SDWe know that h² = 0.2,
Now we need to calculate SD
SD = Xs - X₀Xs = 90 days → Parentals media flowering time
X₀ = 100 → Population media flowering time
SD = Xs - X₀
SD = 90 - 100
SD = - 10 days
Knowing this, we can calculate R
R = h²SDo h² = 0.2
o SD = - 10
R = 0.2 x (-10)
R = - 2
Finally, once we know the R-value we can calculate the X₁ valueX₁ = R + X₀
X₁ = - 2 + 100
X₁ = 98
PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!!
Which of the following most likely explains why the chemical symbol for calcium is Ca?
a.) The symbol C was already used for carbon.
b.) The symbol was assigned by modern alchemists.
c.) Calcium is made of more than one type of atom.
d.) The element is named after the Latin word for calcium.
Answer: d.) The element is named after the Latin word for calcium.
Explanation:
Answer:
I believe it is
d.) The element is named after the Latin word for calcium.
Explanation:
Examine the population growth curve shown below.
Which of the following most likely caused the sharp decline in population at point B?
A.
disease
B.
overpopulation
C.
emigration of a competing species
D.
a shortage of food
Answer:
I believe the answer is A: disease
Help me out pls and thanks !!!
Answer:
C
Explanation:
fungi play a major role as decomposers and recyclers in the wide variety of habitats in which they exist.
In order for a protein to be an integral membrane protein it would have to be which of the following?
Answer:
Integral membrane proteins
Explanation:
also called intrinsic proteins, have one or more segments that are embedded in the phospholipid bilayer. Most integral proteins contain residues with hydrophobic side chains that interact with fatty acyl groups of the membrane phospholipids, thus anchoring the protein to the membrane.
Need help! Will give brainliest
Why does this happen—> the scenario is below;
A comet in space continues to move without slowing down or speeding up.
Answer:
because there is no force acting on the comet that is why it will go forever in the same velocity
Explanation:
newton's first law
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What is the main goal of the Pacific Region Coastal Program?
a. to end fishing along the Pacific coast
b. restore wetland and forest habitats
c. provide jobs
d. restore damage caused by soil erosion
Please select the best answer from the choices provided
Answer:
b
Explanation:
provide job. in the regions of the Pacific coastal program there is unemployment. hence there must be production of jobs
what usually drives animal research is the benefit to human beings of that research?
Answer:
i dont understand what do you mean. theres a spelling mistake
Explanation:
Answer:
godly floodplain do n gjuydlugfyooguogkffigugkyfigou hkkfuuofugouogugo
What is the relationship between Pangea and today's continents HELPPP PLEASEEEE
Answer:
Over millions of years, the continents broke apart from a single landmass called Pangea and moved to their present positions. The land and seas on Earth are constantly moving.
A researcher is crossing two organisms that are heterozygous for three Mendelian, unlinked traits (XxYyZz). What is the fraction of offspring that are predicted to have the genotype xxyyzz?
Answer:
the fraction of offspring that are predicted to have the genotype xxyyzz = 1/64
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
According to the question, a researcher is crossing two organisms that are heterozygous for three Mendelian, unlinked traits (XxYyZz) the fraction of offspring that are predicted to have the genotype xxyyzz = 1/64.
as the crossing over between XxYyZz * XxYyZz.
What are the 3 principles of Mendelian genetics?The fundamental principles of Mendelian inheritance by Mendel's three laws:
The Law of Independent Assortment, Law of Dominance, and Law of Segregation.Thus,the genotype xxyyzz = 1/64.
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Which structure produces blood cells?
Answer:
Blood cells are produced in the bone marrow of the body more specifically they become blood cells from first being stem cells which then divide until they reach a mature red blood cell stage. ( or other types of cells, stem cells are like the blank template for either red blood cells, white blood cells, or platelettes.)
Explanation:
what is natural resoures typical one?'
Explanation:
A natural resource is what people can use which comes from the natural environment. Examples of natural resources are air, water, wood, oil, wind energy, natural gas, iron, and coal.
4.
Which one of the following is not a simple sugar?
A. Glucose.
B. Galactose.
C. Fructose.
D. Sucrose
[tex]——————————————————————[/tex]
[tex] \huge \mathbb{ANSWER}[/tex]
[tex]——————————————————————[/tex]
4. Which one of the following is not a simple sugar?
D.SucroseGlocuse, Fructose, and Galactose are simple sugars.
[tex]——————————————————————[/tex]
#Hope it helps!
Sucrose is not a simple sugar because it is made up of both glucose and fructose so sucrose is called a disaccharide. Therefore, option (D) is correct.
What is simple sugar?A monosaccharide, often known as a simple sugar, is a form of carbohydrate that cannot be broken down into smaller molecules of glucose and is thus readily absorbed by the body.
There are three primary kinds of simple sugars: glucose, fructose, and galactose. All of these sugars have the same chemical composition, but their structures are quite different from one another.
Sucrose on the other hand is a disaccharide composed of both glucose and fructose. Therefore, it is not a simple sugar and can be broken down into smaller or simpler molecules.
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The clarity of lake water is affected by the amount of phytoplankton (marine plants), soil, clay, and other solids suspended in the lake. Suppose the concentration of carbon dioxide in the atmosphere changed from 340 ppm to 380 ppm from 1980 to 2005. What effect would this have on the occurrence of the full body plate trait
Answer:
Following are the responses to the given question:
Explanation:
Increased [tex]CO_2[/tex] gases in the water may hasten photosynthesis, enabling crops to develop and grow more quickly. Some [tex]CO_2[/tex] is absorbed and more oxygen is expelled as the frequency of rate of photosynthesis.
The higher plants grown means greater water filtration. Natural selection will run its course if the water is less polluted, as well as the fish may not need to pass mostly on full-body plate characteristics to their descendants.
can someone pls answer number 1 and 2
Answer:
1) The Greenhouse Effect works When the Sun's energy reaches the Earth's atmosphere, Some of it is reflected in space, and the rest is absorbed and re-radiated by the greenhouse gases.
2) The greenhouse effect is the trapping of heat under the atmosphere, which is a natural effect caused by greenhouse gases. However, when greenhouse gas concentrations are too high, they trap too much heat and increase the temperature on Earth, causing the enhanced greenhouse effect.
Which of these is an example of point-source pollution?
A. Air pollution from all the airplanes at an airport
B. Wastewater from a suburban development
C. Air pollution from the smokestack of a factory
D. Wastewater from a metropolitan area
Answer: C) Air pollution from the smokestack of a factory.
Explanation:
why do prevailing winds and positions of islands cause warm ocean currents to pass Christchurch in normal years
Prevailing winds and positions of islands cause warm ocean currents to pass Christchurch in normal years for the following reasons:
The prevailing winds in the region are generally from the southwest.The position of islands such as New Caledonia and Norfolk Island can also influence the movement of warm ocean currents in the region. In the case of Christchurch, there are a few reasons why warm ocean currents tend to pass by the region in normal years:Warm ocean currents are typically driven by prevailing winds, oceanic currents, and other factors such as the shape of coastlines and the positions of islands.
The prevailing winds in the region are generally from the southwest. These winds blow parallel to the coastline, which means that warm ocean currents are deflected away from the shore and towards the east. As a result, the waters off the coast of Christchurch are generally cooler than those further north or northeast. The position of islands such as New Caledonia and Norfolk Island can also influence the movement of warm ocean currents in the region. These islands help to direct the flow of warm water towards the Coral Sea and the Tasman Sea, rather than towards the coast of New Zealand. This means that Christchurch, which is located on the eastern coast of the South Island, is less likely to experience the effects of warm ocean currents.Note: That oceanic currents and winds can be affected by a range of factors, including El Niño and La Niña events, which can cause changes in sea surface temperatures and alter the path of ocean currents. As a result, there may be some years when warm ocean currents do reach Christchurch, even if this isn't typically the case in normal years.
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If an organism has 24 chromosomes in its somatic cells. How many chromosomes will be found in a sperm or egg (gametic) cell?
In certain species of plants, the color Yellow (Y) is dominant to the color white(y). If you cross a purebred dominant mom with a dad that is recessive,
what is the probability of an offspring being white?
A 0%
B 25%
C 50%
D 75%
E 100%
Why do living things need air to breathe?
Explanation:
Because It is vital that living things respire to get the oxygen for living cells to function.
Residents in a coastal town in Japan are hastily preparing to evacuate after an earthquake a few miles away in the
ocean. They have been warned of a tsunami headed their way. Which of the following professionals would provide this
warning?
O geochemist
seismologist
geological engineer
environmental engineer
Round seeds (R) are dominant to wrinkled seeds (r) and yellow seeds (Y) are dominant to green seeds (y). a true-breeding pea plant with round and yellow seeds is crossed to a true breeding plant with wrinkled and green seeds. The F1 progeny are allowed to self fertilize. What is the probability of obtaining a wrinkled, green seed in the F2
Answer:
1/16 of the progeny is expected to be plants with wrinkled and green seeds, rryy
Explanation:
Available data:
Round seeds (R) are dominant to wrinkled seeds (r)Yellow seeds (Y) are dominant to green seeds (y)A true-breeding pea plant with round and yellow seeds is crossed to a true breeding plant with wrinkled and green seedsThe F1 progeny self fertilize1st Cross:
Parentals) RRYY x rryy
Gametes) RY, RY, RY, RY
ry, ry, ry, ry
F1) 100% RrYy
2nd Cross)
Parentals) RrYy x RrYy
Gametes) RY, Ry, rY, ry
RY, Ry, rY, ry
Punnett square) RY Ry rY ry
RY RRYY RRYy RrYY RrYy
Ry RRYy RRyy RrYy Rryy
rY RrYY RrYy rrYY rrYy
ry RrYy Rryy rrYy rryy
F2) Genotype
1/16 of the progeny is expected to be RRYY2/16 = 1/8 of the progeny is expected to be RRYy1/16 of the progeny is expected to be RRyy2/16 = 1/8 of the progeny is expected to be RrYY4/16 = 1/4 of the progeny is expected to be RrYy2/16 = 1/8 of the progeny is expected to be Rryy1/16 of the progeny is expected to be rrYY2/16 = 1/8 of the progeny is expected to be rrYy1/16 of the progeny is expected to be rryyPhenotype
9/16 of the progeny is expected to be plants with round and yellow seeds R-Y-3/16 of the progeny is expected to be plants with round and green seeds R-yy3/16 of the progeny is expected to be plants with wrinkled and yellow seeds rrY-1/16 of the progeny is expected to be plants with wrinkled and green seeds rryyWhy does the nuclear membrane break down at the beginning of mitosis
A: because it’s components are used to form the mitotic spindle
B: because spindle fibers pull away the membrane
C: because chromosomes need to move to opposite poles of the cell
D: the nuclear membrane does not break down at the beginning of mitosis
how does Sexual reproduction leads to genetic variation.
Answer:
Sexual reproduction provides genetic diversity because the sperm and egg that are produced contain different combinations of genes than the parent organisms. ... Sexual reproduction involves meiosis, which is the process of a cell doubling its DNA, shuffling its genes, and then dividing the shuffled DNA among four cells.