It means an organism respire without it
so that organism know as anaerobic
for example : bacteria eats human and animal dead bodies under the earth there O² is deficient so bacteria respire with oxygen O²
Answer:
rugae or gastric folds
Explanation:
not totally sure but i think so
Answer:
nucleotide
.
Explanation:
The monomer that contains a base, sugar and phosphate group is a nucleotide.
Answer:
When hydrocarbon fuels are brined
Explanation:
Carbon dioxide is added to the atmosphere by human activities
