Answer:
<em>Humans cultivate plants that house bacteria in soil to convert ammonia and ammonium ions to </em><u><em>nitrate</em></u>
Explanation:
Answer:
The size of a population of microorganisms in liquid culture may bemeasured by counting cells directly or by first diluting the original sample and then counting cell numbers (see below), or by taking some indirect method such as the turbidity (cloudiness) of the culture.
Explanation:
Answer:
B. Relative Dating
Explanation:
Relative dating is when you look at fossils from around the same area or the same estimated time .
Answer:
A biologist discovered a young, four-legged animal. The animal had lungs, seemed to fertilize internally, and its outer surface was covered with scales. In which class of animals is the biologist likely to place the animal?
reptile
