Answer:
If there is a change in the environment, the particular species which does not manage to adapt either tries to translocate to a different habitat or it perishes. Adaptation requires a long time and does not happen overnight so if there is an option of moving out the animal adapts to do so. If that doesn’t happen we are looking at local extinction of the concerned species. This is one of the reasons why we are facing extinction of several species in our times. The rate at which we are changing the characteristics of habitats and even wiping out certain pristine habitats is leading to extinctions.
Explanation:
hope it helps
The answer is B) A Eukaryotic animal
Answer:
3.9 billion years
Explanation:
The half-life of potassium-40 is the time it takes for half of it to decay.
After one half-life, half of the original amount will remain.
After a second half-life, half of that amount will remain, and so on.
We can construct a table as follows:

We see that the mass will drop to 10 g after three half-lives.
1 half-life = 1.3 billion years
3 half-lives = 3.9 billion years
Answer:
They regulate the cell cycle by phosphorylating other proteins
Explanation:
they are serine-threonine kinases, they play an important role in the phosphorylation of other proteins. Cyclin-CDK complexes phosphorylate substrates appropriate for a particular cell cycle phase and without that, the cycle cannot continue.
Nitrogen. Rocks have nitrogen in them. But just to be sure you should also just look it up to see if I am right.