Organism, population, community (first choice)
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Answer:
option d is correct. the existence of land bridges between continents.
Explanation:
landland bridge theory which was used to explain why species would end up continents over, such as mammoth travelling to North America, thisthis theory was based on the idea that water eventually Rose to cover these bridges rather than the at having individual plates that moved away from each other.
Answer:
photosensitive
Explanation:
we breathe in oxygen and breathe out carbon dioxide then all that stuff goes in the air and back into plants where it produces oxygen
D: Surface-water runoff from rain
