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nlexa [21]
2 years ago
15

Define metamorphism​

Biology
2 answers:
aleksandrvk [35]2 years ago
8 0

Answer:

alteration of the composition or structure of a rock by heat, pressure, or other natural agency

Explanation:

Ivahew [28]2 years ago
4 0

Metamorphism means alteration of the composition or structure of a rock by heat, pressure, or other natural agency

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Binding of ________________ to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarizat
kifflom [539]

Answer:

Binding of   <u>ACh (acetylcholine)  </u>  to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarization of the muscle fiber.

Explanation:

It allows acetylcholine to be released into this synapse when an action potential hits a neuromuscular junction. Acetylcholine attaches to the nicotinic receptors localized on the post-synaptic membrane of the muscle fibre's motor end plate, a specialized region.

Hence , the answer is  <u>ACh (acetylcholine) .</u>

8 0
3 years ago
Iodine is a yellowish solution. A starch solution is white. A starch solution turns purplish-black in the presence of iodine. If
cupoosta [38]

Answer:

The correct answer will be- the color change will be observed and the solution will turn purplish-black.

Explanation:

Iodine test is performed to test the presence of the carbohydrates mainly starch.

The iodine solution is chemically called potassium iodide which forms a yellow solution. The potassium iodide solution forms a complex with a starch solution which appears a purplish-black color which shows the presence of the carbohydrates.

In the given question, if we add the iodine solution to the beaker after a certain point of time then it will still form a complex with the starch and thus beaker solution will appear darker in color.

6 0
2 years ago
What type of molecule do plant cells use for long-term energy storage?
NemiM [27]
The answer is c. Starch.

During photosynthesis in the leaves of the plants, carbon dioxide and water are converted into glucose and oxygen using the energy of sunlight. The excess of glucose synthesized in photosynthesis is converted and stored as a starch which is than transported into storage organs where it will serve as a long-term energy storage.

Fat is used for long-term energy storage in animals, while ATP and ADP are short-term energy storage.

5 0
3 years ago
How do most small molecules cross the cell membrane?
GarryVolchara [31]

Answer:

the structure of the lipid bilayer allows small,uncharged substances such as oxgen.and the carbondioxiode,and hydrophobic moleclues such as lipid to pass through the cell membrane

3 0
3 years ago
Which of the following is needed by human infants if they are to grow and develop normally? A. frequent contact with other human
Kaylis [27]

Answer: E. all of the above.

Explanation: for human infants to grow and develop normally, the need for them to interact with people (family, friends and the public) cannot be over emphasized. Interaction with people goes a long way in the brain, physical and social development of infants.

Frequent interaction with people helps infants in their communication skills.

5 0
3 years ago
Read 2 more answers
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