I need help on number 8

Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

Which process of living things produces water that enters the water cycle