1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna007 [38]
4 years ago
9

A balanced polymorphism exist through disruptive selection in seed cracker finches from Cameroon in which small and large billed

birds specialized in cracking soft and hard seeds, respectively. If long term climatic change resulted in all seeds becoming hard, what type of selection would then operate on the finch population?
a. Sexual selectionb. Stabilizing selectionc. Directional selectiond. Disruptive selection
Biology
1 answer:
Viefleur [7K]4 years ago
5 0

Answer:

c. Directional selection

Explanation:

There are three types of selection: stabilizing, directional and disruptive. Currently seed cracker finches show disruptive selection with respect to bills. In disruptive selection two extreme phenotypes are preferred in population over the mean phenotype. Here either, small or large bills are beneficial for birds so it is an example of disruptive selection.

If due to some climatic change all seeds would become hard, it would be more beneficial for birds to have large bills. Slowly nature will select for birds with large bills rather than birds with small bills. The selection now will shift to directional selection since only one of the extreme phenotypes is being favoured.

You might be interested in
Small steps toward completion of the final project are called _________. benchmarks bunny hops driving questions reflections
sweet-ann [11.9K]

Answer:

Benchmarks

Explanation:

A benchmark is simply an operation or a test to check the performance of something (in this case, a project) to evaluate if it is ready to be used.

Benchmarks are important because they are needed to see if a project is ready and set to be launched.

4 0
3 years ago
Read 2 more answers
A relationship in which one species consumes and the other is killed is known as
Vlad [161]
Predation


It can be explained in that way or also called Predatory/prey relationships.
Parasitism is when one is benefited and the other harmed (ie leech and human)
Commensalism is when one is benefited and the other not affected (Tree frog and rainforest tree)
Mutualism is when both are benefited (Bee eats honey and Flower is pollinated).
6 0
3 years ago
Read 2 more answers
How many American states have waters that are so polluted the seafood from them is not safe to eat?
Scilla [17]

Answer:

B. 19

Explanation:

8 0
2 years ago
Read 2 more answers
A scientist investigated DNA replication in two groups of cells, labeled A and B. She injected radioactively labeled nucleotides
victus00 [196]

Answer:d

Explanation:step by step explanation

4 0
3 years ago
The __________ division carries signals to the smooth muscle in the large intestine.
ololo11 [35]

Answer:

Visceral motor

Explanation:

Peripheral nervous system is divided further into visceral and somatic nervous system. Somatic nervous system controls the skeletal muscles, joints and tendons. Visceral nervous system controls cardiac muscles, glands and smooth muscles.

Large intestine has smooth muscles so it is controlled by the visceral nervous system. It has further two divisions, sensory and motor. Sensory division carries signals from the muscle to the central nervous system whereas motor division carries signals from the central nervous system to the muscle which cause an action. Hence, visceral motor division carries signals to the smooth muscle in the large intestine.

8 0
3 years ago
Other questions:
  • A woman is training to improve her running capabilities for an upcoming marathon. She is progressively increasing the distance a
    12·1 answer
  • What is a learned behavior?
    13·2 answers
  • Alternative energy sources come from renewable processes. true or false?
    10·1 answer
  • 1. Annual plants continue to grow indefinitely after flowering. True / False.
    14·1 answer
  • The most likely result of this process is
    8·1 answer
  • Please help would mean a lot tried looking up the answer but I have to pay to get answers.
    15·1 answer
  • How do you find out if something is alive or dead?
    11·1 answer
  • Guys please urgent!!! Can I have the equation for (i)????? Thank uuuu
    15·1 answer
  • I need help with this question!
    8·1 answer
  • What does the word biomass mean?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!