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stiks02 [169]
3 years ago
14

Please help please please :(

Biology
2 answers:
grin007 [14]3 years ago
8 0

Answer:

a natural disaster that eliminates a small number of organisms

I'm pretty sure this is the answer-

scoundrel [369]3 years ago
6 0
Answer is….drumroll please A
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Porifera or Sponges

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Porifera is the phylum of the simplest multicellular marine animals. Their body is composed of  two cell layers (something like tissues) and mesophyl between them. The body is in direct contact with surrounding water through the large number of pores and channels. What makes Sponges so simple is that their cells are unspecialized and that they  don't have nervous, digestive or circulatory systems.

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Gregory Mandel‘s work was in the area of?
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Beyond their role in energy transfer, what other benefit do microorganisms that act as producers provide for ecosystems?
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The microorganisms present metabolic wastes that serve as the primary source of food for other living things.

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By nitrogen fixation is meant the combination of molecular nitrogen or dinitrogen with oxygen or hydrogen to give oxides or ammonia that can be incorporated into the biosphere. Molecular nitrogen, which is the majority component of the atmosphere, is inert and not directly usable by most living things. Nitrogen fixation can occur abiotic (without the intervention of living beings) or by the action of microorganisms (biological nitrogen fixation). Fixation in general involves the incorporation into the biosphere of a significant amount of nitrogen, which globally can reach about 250 million tons per year, of which 150 correspond to biological fixation.

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ATP

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