Answer:
D. by taking in oxygen and cleaning out waste gases like carbon dioxide.
Explanation:
The respiratory system cleans out your carbon dioxide and replaces it with oxygen.
Answer:
the producers couldn't produce enough for the consumers
Explanation:
there needs to be more producers than consumers
Regardless of gravity, you'll have the same mass. Mass is constant, and cannot be changed by any outside factors.
A. They trap some of the Sun’s heat energy within the atmosphere, helping to maintain Earth’s average temperature.
Answer:
A-A population of butterflies includes alleles for both yellow and green butterflies. A butterfly predator sees yellow more easily than it does green
Explanation:
