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rodikova [14]
3 years ago
10

All organism originated from?

Biology
1 answer:
In-s [12.5K]3 years ago
5 0
Cells.
one or more cells
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What force is needed to accelerate a 200 kg mass across a surface at 75.5 m/sec2?
stich3 [128]
By using the equation F=ma (Force = Mass*acceleration), the answer is 15,100 N for the first one and 1.25 m/s^2 for the second.
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The Precambrian eon is separated from the Phanerozoic eon in the fossil record because of
Usimov [2.4K]

The Precambrian eon is separated from the Phanerozoic eon in the fossil record because of the sudden appearance of organisms.

Explanation:

Precambrian eon is the initial existence on earth that can be predicted by the study of rocks and remaining of fossils. It has been seen as the existence of skeleton in this era, before this era no such things has been observed, even the development of sexual reproduction.

The Phanerozoic era comes after the Precambrian era, more advanced kinds of fossils of animals had been observed in this era.  Phanerozoic era period of life on earth. Large organisms sudden appearance are seen in the Phanerozoic era i.e. First dinosaurs, mammals, fishes, angiosperms,first vertebrates etc.

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3 years ago
Linnaeus's hierarchical system of classification includes seven levels. What is each of these levels referred to as? A. taxon B.
Sladkaya [172]

A: Taxon.

The terms order and class both refer to 2 specific levels that are a part of Linnaeus' classification systems.

4 0
3 years ago
What would happen to food chains if all the plants died out ?justify your answer.
Fofino [41]

Answer:  there would be no way for energy to enter the food web, and the ecological community would collapse.

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everything would die because its a domino effect

6 0
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Where is the long, pointed beak of a woodpecker most clearly an adaptation?
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