B. The water is likely contaminated with high levels of pollution or waste
Answer:The first one
Explanation:Parasites increase in the host's body because they need to reproduce, causing the number of parasites to increase
Answer:
<em>The population of the impala antelopes will decline rapidly.</em>
Explanation:
The cheetahs and leopards are the predators of the impala antelopes. If the population of the predators arises, this means there will be more predators feeding on the prey. As a result, the population of the prey will decline. Hence, in the above scenario, the population of the impala antelopes will decline rapidly as it will have more number of predators. The population of the cheetahs might also start to decline if it does not move on to another source of food.
<span>The correct answer is D. Micromanipulation allows interaction with precision. This is done under a microscope. With micromanipulation, in-vitro fertilization has come true, and is helping thousands of parents to become parents.</span><span />