Me i will rate high needs to be correct sponges and corals grow on the same type of substrate. what type of interaction is most likely between them? commensalism, because sponges can be consumed by corals, but corals do not benefit in any way. competition, because they compete to grow on the same space and both species would do better if the other were not present. mutualism, because the presence of sponges corals to grow and the presence of corals sponges to grow. predation, because corals can consume sponges, but there is no benefit of corals to sponges.

Competition, because they compete to grow on the same space and both species would do better if the other were not present.

Explanation:

Competition refers to interaction among organisms for same resource. Here, the competition could be for food, shelter or reproduction. Sponges and corals grow on the same type of substrate and hence, exhibit competition for "habitat".  If present alone, both sponges and corals would exhibit better growth as compared to their growth in presence of each other.

it takes hundreds of years to become stable.

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these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.