Are you asking what animal, cause if so, sea turtle. It's why they bury their eggs
Answer:
A. They do not use up any energy finding mates.
Explanation:
The asexual reproduction consists of one parent which are same to each other while on the other hand consists of two parent that produced unique.
For species survival, the reproduction of protozoa asexually rather than sexually could be better when they don't use much time and energy for determining the mates
Therefore in the given case the correct option is A.
Break down food into simpiler compounds in order to supply nutrients to the body - monosacchrides, nucleotides, peptides, lipids.
B. Soil Contamination
All the other answers are talking about clean and pure things while this answer is the only negative one. So B is your answer.