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dem82 [27]
3 years ago
11

Actin and myosin are proteins that allow muscles to

Biology
1 answer:
andreyandreev [35.5K]3 years ago
8 0

Answer:

contract

Hope this helps...

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Name two types of substances that do not contain molecules with covalent bonds
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PLSS HELP
densk [106]

Explanation:

Primary succession, type of ecological succession (the evolution of a biological community’s ecological structure) in which plants and animals first colonize a barren, lifeless habitat. Species that arrive first in the newly created environment are called pioneer species, and through their interactions they build a simple initial biological community. This community becomes more complex as new species arrive. Primary succession is distinguished from secondary succession, which is the recovery of an existing biological community after a disturbance sets back the community’s ecological structure to an earlier stage.

6 0
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The rocky material left behind by a retreating glacier forms what is called a moraine. When primary succession occurs on a morai
nexus9112 [7]

Answer:

The correct answer is - B. Lichens.

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Breaking the bare rocks to convert into the soil is part of the primary succession. Lichens are colonized over these rocks and they contain acid which leads to the breakdown of the moraine and other rocks.

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