Vaccines are made up of dead or weakened pathogens that are stripped of their ability ..
so answer is in a vaccine
The data suggests that dark colored fur coats are more preferred in regions with dark rocks, such as the West, middle and East regions. Option C is the correct answer - Dark color is selected for mice from the West, mid and East populations.
Enzymes catalyze reactions by lowering the activation energy of the reaction. Enzymes are made of proteins, and therefore the answer here is B. Protein molecules.
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
