The answer is <span>the
current rate of extinction is between 100 & 1,000 times higher than
the historical background rate. Human activities have led to a huge
increase in the rate of extinctions, leading some scientists to say that
we are now in the sixth mass extinction. Hope it helps</span>
acid test
Explanation:
the first test the chemist should do is an acid test
Answer:
<em>If the Tamiflu-resistance gene involves a cost, it will experience directional selection leading to reduction in its frequency.</em>
Explanation:
The new virus will be resistant to Tamiflu. The Tamiflu resistance gene will become common in the environment due to directional selection. Directional selection can be described as a condition in which one phenotype is favoured such that the phenotype becomes abundant in an area and hence the allele frequency of the area changes. This occurs because that phenotype is better adapted to survive in an environment.
