Answer:
1. D- Within cultures that rely on milk-producing animals, individuals who tolerated lactose had a survival advantage.
2. B- Genetic drift is the random increase or decrease of certain genes in a population; natural selection is not random.
3. A- An interferon activates the body's immune system response to a virus.
4. D- Each persons immune system employs different tactics to get rid of the virus.
5. D- yes, because mutated viruses are able to infect more hosts.
i just did this test, 100% with these answers
Water <span>can cross the membrane in osmosis ....
Hope it helps!!!</span>
Answer:
4% of the white population in the US are carriers of cystic fibrosis.
Explanation:
According to the Hardy-Weinberg equilibrium equation, if q2 equals 1/2,500, then q equals .02, p equals .98, and 2pq equals approximately .04, or 4%.
Remember that the Hardy-Weinberg equilibrium equation is <u>used when the population maintains its genetic variation constant</u>.
