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Bond [772]
3 years ago
6

Slow development or replacement of an ecological community by another over time

Biology
1 answer:
Thepotemich [5.8K]3 years ago
8 0

Answer:The second choice is best !

Explanation:

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Some bacteria live in the roots of plants like soybeans and peas what role of these bacteria in the nitrogen cycle
kolezko [41]

Answer:

there is the answer to your question

3 0
4 years ago
Which characteristic of a protein may change during a dna mutation
katrin2010 [14]

Explanation:

When there is DNA shape mutation, one of the main things that could happend in the change of shape of the proteins, this creates a different pattern to arrange the nucleotids in the nuclei of the cells

3 0
4 years ago
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Axons of the nervous system are described as afferent and efferent according to the direction in which they carry information. W
Ahat [919]

Answer:

The correct option is b) motor output of the spinal cord

Explanation:

Motor neurons, also called afferent neurons, drive impulses from the brain and spinal cord to the receptors (eg, muscles). They are the motor output component of the spinal cord.

The spinal cord is a cord of nerve tissue that runs inside the spine. It conducts the nerve impulses that arrive from the receptors to the brain, and the responses with the motor orders from the brain to the effector organs. Thus, the brain receives the information and can develop an order that modifies the reflex response given by the spinal cord. A spinal nerve has two nerve roots: a motor and a sensory root. The motor root has nerve fibers that carry signals from the spinal cord, to the muscles to stimulate contraction and produce muscle movements, the fibers are efferent as they leave the medulla to the periphery through the anterior roots of the spinal nerves.

5 0
4 years ago
Which answer helps to explain why all living cells need ph buffers?
defon

Answer;

Amino acid side chains have many carboxyl and amino groups.

Explanation;

-A buffer solution is a solution that resists changes in pH when small quantities of an acid or an alkali are added to it. It is a chemical substance that helps maintain a relatively constant pH in a solution, even in the face of addition of acids or bases.

-Buffering is important in living systems as a means of maintaining a fairly constant internal environment, also known as homeostasis.Small molecules such as bicarbonate and phosphate provide buffering capacity as do other substances, such as hemoglobin and other proteins.

- Protein buffer systems depend upon proteins, as opposed to nonprotein molecules, to act as buffers and consume small amounts of acid or base. Since amino acids have the capability of reacting with both acid and base, they naturally act as buffers.

4 0
4 years ago
The speed of a sound wave
VladimirAG [237]
The speed of sound wave is slower than electromagnetic wave.
6 0
3 years ago
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