instruction:
In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
question:
Question: What do ecosystems absorb on the earth? Answer: energy
answer:
Energy do ecosystems absorb on the earth.


question:
Question: What is the most abundant type of biological entity on the earth? Answer: viruses
answer:
Viruses are the most abundant type of biological entity on the earth.


question:
Question: While spermatogenesis produces four haploid sperm cells, oogenesis produces one mature what? Answer: ovum
answer:

While spermatogenesis produces four haploid sperm cells, oogenesis produces one mature ovum.