Answer:
Protozoa are single-celled eukaryotes
Explanation:
Eukaroytes are organisms whose cells have nuclei
Answer:
The answer is A because it erodes rocks away over time
Explanation:
A
The answer is D. Run only full loads in the washing machine and dishwasher.
B doesn't seem like a good idea, C uses more water, and A would save water but not as much as the washing machine and dishwater use.
Primary producers use an energy source (usually sunlight) to build organic molecules.
The eons that make up 90% of Earth's history are the Precambrian eons, which consists of Hadean, Archean, and Proterozoic eons.
