Answer:
Secondary succession in healthy ecosystems following natural disturbances often reproduces the original community, however ecosystems may not recover from human-caused disturbances. Ecological succession is a series of more-or-less predictable changes that occur in a community over time.
Explanation:
Sharks depend on reproduction for survival
100% sure the correct answer is D. It should cost no money at all for better economic health. Just took this test good luck to anyone in the future who reads this. Hope this helps.
Answer:the second blank is respiratory
Explanation:
