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Sedbober [7]
3 years ago
11

Status

Biology
1 answer:
Alborosie3 years ago
6 0
C is the correct answer
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The effects of acid rain are most evident in a tundra biome because:
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Answer:

A

Explanation:

took the exam and this was the right answer (connexus)

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There are several things that can lead to a person's having a compromised immune system. Which is NOT a likely cause of a compro
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Maria is doing an experiment with soda she opened a can of soda and left it open for a day the starting mass of the soda was 340
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In humans, the quadriceps muscle is a skeletal leg muscle under voluntary control. As such, it contracts in response to signals
Masja [62]

Answer:

The correct answer is - operation of reflex arc.

Explanation:

The reflex arc is a unique and special type of neural pathway that starts with a sensory neuron and ends with a motor neuron. In this operation sensory neuron acts as the receptor and motor neuron is effector. This type of neural circuit helps in faster response.

Voluntary muscles like quadriceps muscle are normally in control voluntarily however, such muscle may contract involuntary due to reflex arc. This type of contraction takes place before the signal has even reached the brain.

In this response the sensory neuron takes the signal to the spinal cord and then motor neuron to the effector muscle for faster response.

Thus, the correct answer is - operation of reflex arc.

8 0
3 years ago
Which plant cell organelle helps maintain the shape of the cell by helping to maintain turgor pressure?
dlinn [17]

Answer: Vacuole

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The vacuole occupies on average 50% of the cell volume, oscillating between 5 and 95%. It is a fluid-filled, membrane-wrapped gallbladder. The vacuoles perform numerous functions because, in addition to accumulating nutrients, metabolites, and catabolites, they serve as deposits of specific substances such as proteins, opium, dairy and also various poisonous or unpleasant taste substances, which protect the plant against its predators.

Vacuoles are structures that participate in the maintenance of cell turgor, which pulls the cytoplasm against the cell wall as air tightens the air chamber against the tire. When water is lacking, the plant wilts due to decreased intracellular turgor.

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4 years ago
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