Answer:
2 membrane layers cover up the nucleus
Answer:
c
Explanation:anitbodies are attached to the body of the pathogens then they r eliminated
Answer: D. Fossil Record
Hope
this is correct!!
Microbes. Bacteria, for example, convert nitrogen and carbon dioxide from the air into usable components that plants and animals can use as essential building blocks. A loss of all microbes would be terrible news for living organisms that can't create or take in these essential nutrients on their own.
