Consider the following scenario: A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two groups of birds in the population that differ in leg length and diet. Long-legged birds eat fish, while short-legged birds eat insects. The drought has little effect on insect populations. What is the main selective pressure in this scenario?
leg length
insect population
drought
fish population
fish population
cuz i know :0
The main selective pressure in the given scenario will be on the fish population. Thus, the correct option will be D.
What is Selective pressure?The selective pressure can be defined as an evolutionary force that causes a particular phenotype to be more favorable in certain environmental conditions than other phenotypes. Selective pressures are the considered forces which can drive the evolution through the process of natural selection. Some phenotypes are more favorable than other phenotypes, depending on the external conditions.
Selective pressures can be detrimental or beneficial to certain phenotypes present within a population. The four main types of selection pressures are the biological factors, such as the predation and disease, the availability of resources, the climatic conditions, and the competition between different species.
Therefore, the correct option will be D.
Learn more about Drought here:
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Select the activities in which crop estimates play a critical role.
develop sampling pattern
plan harvest and storage requirements
estimate necessary soil inputs
obtain delivery estimates
budget for cash flow
obtain organic certification
obtain crop insurance
organize recommended timing
what are the different units of the geological time scale ?
eons,eras,periods,epochs,and ages
Explanation:
it subdivides all time into names of abstract time in decendung order of duration.
I am made up of nucleotides. Am I DNA RNA or both?
Answer:
DNA
Explanation:
hope this help's
write a function of optic nerve?
7 Alice is studying biological molecules. She isolated a molecule and identified the
nucleotide bases adenine, cytosine, guanine, and thymine. Which molecule did
Alice isolate?
F DNA
HIRNA
G mRNA
I TRNA
how does inorganic compounds affect us as humans?
Answer:
Oxygen is required by all cells for cellular metabolism and circulating blood must be well oxygenated for maintenance of life. Carbon dioxide is a waste product of cells and must be eliminated or a serious change in pH can occur, known as acidosis.
Explanation: brainlist?
Most plant growth takes place in the ____________________ of the root
Answer: Primary Growth
Most primary growth occurs at the apices, or tips, of stems and roots.
Explanation:
If the DNA sequence is GCTCAATTCGACCTA, the complementary RNA
sequence created during transcription is
Answer:
CGAGTTAAGCTGGAT
Explanation:
thymine pairs with adenine and guanine pairs with cytosine
T-A
G-C
What process is represented in the picture above?
A land breeze occurs during the ________ because the air above the land is a _________ pressure
U-C-A-U-C-G-U-C-G-A-A-C-U-C. is it an RNA or DNA strand?
Answer:
RNA
Explanation:
because it has uracil
What is a vital element in Earth's atmosphere that helps it support life when other planets can't?
A) The element of surprise
B) Hydrogen
C) Oxygen
D) Carbon dioxide
Answer:
D) Carbon dioxide
Explanation:
Write the lyrics of O Ramji bada dukh dina
Plants, monera, and animals are all A.Have cell walls B. In the same kingdom C. In different kingdoms D. Have chloroplast
Which of the following statements is true about arteries?
Arteries are large vessels.
Arteries carry blood from the heart to tissues of the body.
Arteries carry oxygen rich blood, with the exception of pulmonary arteries.
Arteries have thick walls which are needed to withstand pressure produced when the heart pushes blood into them.
None of the above
All of the above
Answer:
All of the above
Explanation:
How does change in each independent variable affect the dependent variable?
Explanation:
although independent variables can stand alone dependent variables rely on the independent variables therefore when you change the independent variables the dependent variables can no longer depend on the independent variables.
Guys please help me with this assignment.
2) What your intended Career choice and your purpose for choosing that career choice?
Answer:
I want to be a fire fighter.
Explanation:
My career choice is to be a fire fighter. I want to be a fire fighter because I love to help people and being on a team. I am a very brave person so I think I would be good for the job. I am also a team player so I would work well with my fire crew.
How do both sodium and potassium ions travel
Answer:
Sodium ions pass through channels in the hydrophobic barrier that have been formed by membrane proteins. The crossing membrane is called facilitated diffusion because it is facilitated by the channel
Potassium ions have to be transocated through specific membrane transport proteins. It is then transported into the cell through potassium pumps with energy being consumed int the form of ATP.
The sodium-potassium pump goes through cycles of shape changes to help maintain a negative membrane potential. In each cycle, three sodium ions exit the cell, while two potassium ions enter the cell. These ions travel against the concentration gradient, so this process requires ATP.
Explanation:
Answer:
The sodium potassium pump goes through cycles of shape changes . In this way they help maintain a negative membrane potential. In each cycle, two potassium ions enter the cell while three sodium ions exit the cell . These ions travel against the concentration gradient. And this process requires ATP.
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a student wants to set up an investigation to determine the identity of several minerals. which of the following properties should not be used?
Answer:
hope help you stay happy
what is biology?
a.science b.social
Answer A Science
Explanation: Biology is one of the three main sciences that students study. It is the science of life.
plz help me with this 1 question?
Answer:
Boundary
Explanation:
That's the word for it
Which of the following best describes why estuaries are important resources? A. They are the world's richest sources of precious metals. B. They are among the most productive types of ecosystems. C. They prevent weathering of rock from slopes and cliffs. D. They help stabilize the global climate.
Answer:
B. They are among the most productive types of ecosystems.
Explanation:
The estuaries provide migratory birds a place to rest. for example.
Answer:
B
Explanation:
Got it right on the test thingy
why is active transport necessary for the absorption of amino acids in the blood stream
Answer:
Active transport is a mechanism that requires molecules to move against a gradient of concentration. The procedure needs energy.
The glucose molecules in the gut may be higher than in the intestinal cells and blood – e.g. after a sugar meal.
Explanation:
Active transportation is a process necessary for molecules to travel against gradient concentration. It takes energy to do this.
Ions are transferred to the root hair for the use of mineral ions in plants, which have an increased concentration compared to diluted soil solutions. Active transport occurs to enable the plant to take in the soil around the plant the nutrients it requires.
Glucose molecules in animals must be transported into the blood through the gut wall. In the intestine, glucose molecules may be more concentrated than in the intestinal cells and blood - following a sugar meal, for example. It will then spread from high intestinal concentrations to lower blood levels. This requires no energy.
However, glucose levels in the intestines may be lower sometimes. In that instance, active transport is involved in the transportation of glucose. This procedure requires breath-generated energy.
Sophie visited Carlsbad Caverns with her family during her summer vacation, and she was amazed at the cave’s formations. She learned that the cave was formed from minerals.
Rearrange the phrases describing one of the ways minerals form into the correct order. Place the earliest stage of mineral formation at the top. Place the final stage at the bottom. (Write 1 2 3 or 4 in order)
1. a solution forms from a liquid and dissolved substances
2. a warm solution flows through a crack in the rocks there
3. elements and compounds leave as the solution cools
4. elements and compounds crystallize
BASICALLY SAY WHICH STEPS GO FIRST IN MINERAL FORMATIONS! PLESSS
Answer:
The ways through which the minerals form include the following order:
2. a warm solution flows through a crack in the rocks there
1. a solution forms from a liquid and dissolved substances
3. elements and compounds leave as the solution cools
4. elements and compounds crystallize
Explanation:
From the explanations above, it could be seen that a warm solution (most probably water) flows through the cracks in the rocks leading to dissolution of substances to form liquid. When the liquid cools, the elements leaves and crystallize as compounds.
guys why is no one answering my question ?
if u want my biology question tell me plzz
Answer:
I'll take it!
Explanation:
Answer:
He/She does not know the proper or correct answer and therefore does not make any attempt to answer. Or, he/she is busy. He/She knows the answer but perhaps has more pressing work or better priorities, and does not have the time to make the efforts to answer. Possibly he/she is unwilling.
Explanation:
ídk maybe its hard? ig...
PLEASE HELP ME D:
Sophie visited Carlsbad Caverns with her family during her summer vacation, and she was amazed at the cave’s formations. She learned that the cave was formed from minerals.
In what ways can minerals form? Choose the three that apply.
A. from gases that condense into solids
B. from dripping water
C. from cooled magma
D. from elements in solutions that crystallize
E. from organic materials
Answer:
c. from cooled magma
d. from elements in solutions that crystallize
e. from organic materials
i hope this helps! do comment to clarify anything if you need to :D
ZOOM IN IF U CANT SEE
I NEED HELP ASAP!!!
Answer:
pretty sure it's A
Explanation:
Haven't taken the assessment personally but I do think that it's bringing emphasis to the extinction rate
Which is all of the organisms found on earth and all of the areas in which they live
A. Ecosystem
B. Biome
C. Species
D. Biosphere
Answer
ecosystem
Explanation:
because a biome is s a collection of plants and animals that have common characteristics for the environment they exist in. They can be found over a range of continents. Biomes are distinct biological communities that have formed in response to a shared physical climate.
Answer:
Biosphere
Explanation:
I took the test and got it right. Hope this helps!
HURRY PLEASEEE!!!
If a galaxy is 1 million light years away, the image that we take today is a picture of the galaxy when it was _______ younger.
ANSWERS;
1 million years
1 day
1 year
100 years
Answer: A) 1 million years younger, if it's 1 million light years away, that's means the image taken is l million years before the current amount of years it is away now. think of it as taking a picture of a moving car, if said car is 10 miles away and you take a picture, after the picture is taken it's no longer that far away.
Hope this helps :)