Answer:
a
Explanation:
greenhouse gases is what caused global warming and climate change
Answer:
b
Explanation:
all plants are make of prokaryotic cells.
Answer:
Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive. ... Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs.
Nucleotide is a combination of a sugar, nitrogen base and phosphate groupment