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
timama [110]
3 years ago
5

Identical population-splitting events occurred simultaneously on two neighboring islands, Islands B and C, which are each initia

lly home to different populations of rodent. The population-splitting event produced two subpopulations of rodent on each island: B1 and B2, and C1 and C2. We find that populations B1 and B2 cannot successfully interbreed with each other after 50,000 years, and that C1 and C2 can still interbreed after 100,000 years. Why does reproductive isolation arrive at different rates on these two islands
Biology
1 answer:
sweet-ann [11.9K]3 years ago
4 0

Answer:

This is due to the event of Speciation that happened for the rodents in Island B but not for the rodents in Island C.

Explanation:

  • Due to splitting of the population,
  • The sub-population of rodents formed in Island B are B1 and B2.
  • The sub-population of rodents formed in Island C are C1 and C2.
  • In case of Island B, each of the B1 and B2 sub-populations that got split from each other developed certain mutations that were necessary for them to adapt to the particular diverse environment each of them were exposed to, through the period of 50,000 years. These mutations were so varied that reproductive isolation was generated between them that resulted in each of them to develop into different species.Hence, speciation happens here and B1 and B2 are incapable of inter-breeding.
  • In case of Island C, each of the C1 and C2 sub-populations that got split might have got exposed to similar environmental change or no environmental change or the environmental change might have been too small to cause drastic change in each of the sub-populations. As a result of this the two sub-populations might have acquired certain mutations to adapt to the environment each of them were exposed to, through a period of 100,000 years. These mutations might not have been too variable or contrasting to cause reproductive isolation between C1 and C2. Hence, no new speciation happens here and C1 and C2 are capable of inter-breeding.

You might be interested in
Sometimes characteristics are not heritable but are environmentally influenced. describe three characteristics that are not inhe
abruzzese [7]
<h2>Answer:</h2>

Approximately all characteristics are inheritable but some characteristic of our body is affected by the external environment.

<h3>Growth:</h3>

Growth is the basic property of a living organism. It can be controlled by the genes like height. But mainly it is dependent on the available nutrients to the body. So a healthy environment with all necessary nutrients leads to healthy perfect growth of the body.

<h3>RB C count:</h3>

Red blood cells counts also effected by environment. The environment which has a sufficient amount of oxygen leads to low blood count as compared to an environment with low oxygen which leads to high red blood cell count.

<h3>Immunity:</h3>

Immunity is the property of living organism to fight against the harmful agents that invade the body.

People most exposed to germs are more immune than people who often face the germs.

7 0
4 years ago
Read 2 more answers
Explain why a breeder would find it beneficial to synchronize heat and ovulation.
Lera25 [3.4K]
Heat detection is needed for breeding.There is a system called timed breeding or the appointment breeding which is made so that the onset of heat and ovulation are induced for an animal to be inseminated at the right time. These then will help the breeder as well as the owner.
8 0
4 years ago
suppose a species of beetle feeds on grass in a grassland ecosystem toads prey on the beetle in which of the following scenarios
Nataly_w [17]
The possible answers are 
<span>A.a drought reduces the toad population </span>
<span>B. an influx of soil nutrients results in increased grass growth </span>
C.a hawk species moves in that hunts toads
<span>D.the toad population increases after a warm, wet spring

The correct answer is D

The increase in numbers in the toad population after a warm and wet spring would mean that there are more toads that prey on the beetles and that they are limiting the beetle population by hunting them.</span>
8 0
4 years ago
The Scientific Method
notka56 [123]

Answer:

hey  

Explanation:

6 0
4 years ago
Humans have used fossil fuels at a level in which thy cannot be renewed. Which list includes only fossil fuels
N76 [4]
A list of the main fossil fuels are - coal, natural gas, oil, petroleum, and liquefied petroleum gas. Hope this helps  <span />
5 0
3 years ago
Other questions:
  • The highlighted structure controls the ________ of the pupil. diameter curvature thickness opacity strength
    14·1 answer
  • Many cell functions involve communication between cells via molecular signals that must be sent from one cell to be received by
    9·1 answer
  • Many scientists hypothesize that the earliest life on Earth formed in and along the edges of hydrothermal vents deep in the ocea
    5·2 answers
  • Someone please help ! No links please
    8·1 answer
  • If a scientific journal article is difficult to understand in its entirety, what is the best resource for comprehending the over
    8·2 answers
  • Use the scenario to answer the question. A student has a balloon filled with hydrogen gas. While wearing safety gear, they hold
    7·1 answer
  • on a nocturnal owl's skull, one ear points up and the other points down. suggest a hypothesis for this observation
    5·1 answer
  • Why do members of Congress involve themselves in casework?
    12·2 answers
  • How are photosynthesis and cellular respiration related?
    7·1 answer
  • If one wishes to clone a gene using typical restriction endonucleases, how does the restriction endonuclease identify the approp
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!