Circulatory system and nucleus
I think it would be the third one
Answer:
D. Which cell organelles carry out the process of photosyinthesis and cellular respiration?
When a top predator is removed from an ecosystem, a series knock-on effects are felt throughout all the levels in a food web, as each level is regulated by the one above it. This is known as a trophic cascade. The results of these trophic cascades can lead to an ecosystem being completely transformed. The impacts trickle down through each level, upsetting the ecological balance by altering numbers of different animal species, until the effects are finally felt by the vegetation.
Extrusive..
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