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aleksley [76]
3 years ago
7

When a skeletal muscle contracts, what is happening at the level of the muscle proteins?

Biology
1 answer:
Margaret [11]3 years ago
6 0
Bulk flow systems move substances faster than simple diffusion.
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Oncogenic viruses Oncogenic viruses are genetically unstable. have no effect on the host cell. are lytic viruses that kill the h
aleksandrvk [35]

Answer:

cause tumors to develop.

Explanation:

Oncogenic viruses are viruses that do not kill or lyses the cells of the host outright but has the capacity to cause to cause a long term infections that may eventually lead to the formation of tumor or cancerous cells within the body of their hosts.

<em>Hence, the fourth option is the correct option. That is, they cause tumors to develop</em>

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Compare and contrast glaciers and sea ice
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The most basic difference is that sea ice forms from salty ocean water, whereas icebergs, glaciers, and lake ice form from fresh water or snow. Sea ice grows, forms, and melts strictly in the ocean. Glaciers are considered land ice, and icebergs are chunks of ice that break off of glaciers and fall into the ocean.
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In Wisconsin, a very large population of lake trout, in which individuals mate at random, experiences no migration, mutations, n
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In this population, what will occur is that there will be no evolution. Mutation is neccessary and important because they provide varitations that can result in evolutionary change. Other factors needed for evolution to occur are migration and selective pressure.
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4 0
3 years ago
One way that fossils form by the dead organism's soft tissue is ________ by sediments such as sand.
loris [4]
<span>preserved is the answer</span>
8 0
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Humus represents _____ of the soil composition to 5% b) 60% c) 25% d) 15% e) 50%
Alex777 [14]

Answer:

The correct answer is B, 60%

Explanation:

Humus, which ranges in color from brown to black, consists of about 60 percent carbon, 6 percent nitrogen, and smaller amounts of phosphorus and sulfur

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