Answer: A. Multicellular life
Explanation: Multicellular organisms are compund by many cells and different type of cells. In such organisms, cells must work together for the survival of the organism. That cooperative work includes regulation of cell division and cell death, division of tasks and cell fates, for example, cells for the immune response, those for metabolism in the liver or neurons for neurotransmision, and nutrient transport.
An organism or type of living thing needs to obtain food, water, shelter and other things it needs to live, grow, and reproduce from its environment. An environment that provides the things an organism needs to live is called its habitat.
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Answer:
<em>Assimilation</em>
Explanation:
This is how plants get nitrogen. They absorb nitrates from the soil into their roots. Then the nitrogen gets used in amino acids, nucleic acids, and chlorophyll. ... When a plant or animal dies, decomposers like fungi and bacteria turn the nitrogen back into ammonium so it can reenter the nitrogen cycle.
The carbon cycle is the biogeochemical cycle by which carbon is exchanged between the biosphere, geosphere, hydrosphere, and atmosphere of the Earth. ... The ocean contains the largest active pool of carbon near the surface of the Earth, but the deep ocean part of this pool does not rapidly exchange with the atmosphere
Answer:
Man-made
Explanation:
We are over harvesting the animals, so the reason for their extinction would be man-made.
