Answer:
The plant is photosynthesizing and using up the CO2.
The salmon will not starve as its prey increased.
The smelt is not the predator of the alewife.
The answer is D.
By mutating, especially if it is RNA stranded it will mutate quicker than DNA. Hope this helps brainliest would be awesome!
By determining the density of the object
Answer:
controlled variable
Explanation: i know this bc i just got it wrong lol