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soldi70 [24.7K]
3 years ago
5

What caused by greenhouse gases? A. the hole in the ozone layer is decreasing B. global warming C. temperature decrease D. weath

er patterns remaining stable
Biology
1 answer:
Anvisha [2.4K]3 years ago
5 0

Answer:

A the hole in the ozone layer is decreasing

B

Explanation:

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Which protein inhibits interaction between actin and myosin to prevent skeletal muscle contraction; and which ions remove the in
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Answer:

Tropomysin, calcium

Explanation:

Tropomysin is a protein that prevents muscle contraction hence acts as a contraction inhibitor. It wraps around the actin blocking the binding sites for myosin on the actin.

Muscle will only contract when they get a rush of calcium ions.

The calcium ions binds to troponin, the troponin changes its shape. The change in shape will remove tropomyosin from the binding sites allowing myosin to bind on the actin leading to muscle contraction.

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3 years ago
The raw materials used by green plants for photosynthesis are
elena55 [62]

Answer:

chlorophyll or pigments

Explanation:

4 0
3 years ago
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Proteins are three dimensional molecules made of strands of amino acids (imagine a ball of string). There are 20 different amino
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Answer:

A series of nonpolar amino acids would most likely be located in the interior region of the tridimensional molecule.

Explanation:

Proteins are formed by linearly arranged amino acids, each with a side chain: the R-group.

Of the 20 different amino acids that compose the proteins, about half of them -10- are non-polar. Their R-groups are not stable if they are in contact with water, meaning that non-polar amino acids are hydrophobic.

When proteins are synthesized, they acquire a three-dimensional structure that makes them more stable. Lineal polypeptides get folded and turn into a shape that makes them more stable in the environment and capable of accomplishing their biological role. When they are in an aqueous media, their bent shape leaves the hydrophilic R-groups in contact with water. The hydrophilic R-groups stick in the center of the polypeptide, facing the protein interior, and avoiding interaction with water.

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3 years ago
Volcanic eruptions are caused by? A gravity. B Pressure C Explosions D earths rotation please help
IRISSAK [1]

Answer:

I'm pretty sure it's B, pressure.

Explanation:

I hope this helped :)

7 0
3 years ago
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This change from fins on the love-finned fish to legs and feet on the early amphibian is most likely due to:___________.
shusha [124]

Answer:

<h2>4</h2>

Explanation:

Lobe-finned fishes are bony fish, having fleshy, lobed, paired fins, these fins are joined to the body by a single bone only . The fins of these lobe-finned fishes differ from all other fishes in many ways, Lobe-finned fish lived in water.

By the passage of time, from fin on lobe-finned fish changed to legs and feet on the early amphibians due to variations among offspring, followed by natural selection. These  legs and feet containing amphibians lives both in water and land.

4 0
3 years ago
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