They can make food, help keep the environment clean, and make medicines.
Answer:
The depth at which Drew found the algae
Explanation:
The dependent variable was the depth at which he found the algae, because that is what he measured on each day.
The independent variable was the sky conditions, since that changed from clear to cloudy, which impacted the dependent variable/the depth of the algae.
Molecular homology, because it compares dna
Answer:
the alcohol group is circled
Because in that way we keep thinking about them. How can you forget something when you're thinking about it?!