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Troyanec [42]
3 years ago
13

Which of the following is the path of a nerve impulse through a neuron? A. terminal branches - axon - cell body - dendrite B. de

ndrite - cell body - axon - terminal branches C. cell body - dendrite - terminal branches - axon D. axon - cell body - dendrite - terminal branches
Biology
2 answers:
Leya [2.2K]3 years ago
7 0
Dendrite, cell body, terminal branches, axon.

Hope this helps!

-Payshence xoxo
maks197457 [2]3 years ago
3 0

Answer:

The answer is B : Dendrite - cell body - axon - terminal branches.

Explanation:

The basic unit of nervous system is called neuron or nerve cell. Bundle of nerve cells together is called nerve. The message carried by neuron is nothing but nerve impulse. The main parts of neuron include: many dendrite, a cell body, an axon and axon terminals. Dendrites receive the nerve impulse from the previous neuron and pass it to the cell body. From cell body it travels through the whole axon length.and reaches the axon terminal. Once it reaches the axon terminal neurotransmitters are released into the synapse which help in sending the message to the next neuron.

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Tryptophan is an amino acid necessary for E. coli survival and growth. E. coli contain genes coding for enzymes that synthesize
jasenka [17]

Answer:

Negative regulation

Explanation:

In the trp operon, tryptophan binds to the repressor protein, then this complex binds to operator effectively blocking gene transcription preventing the production of enzymes that aids in the synthesis of tryptophan. This happens when high levels of tryptophan is detected. This, it is a  repressible/negative type of regulation.

3 0
3 years ago
Two tomato plants are cross pollinated to produce tomato plants that produce more tomatoes.
garri49 [273]

Answer:

Genetic Engineering

Explanation:

Image result for Two tomato plants are cross pollinated to produce tomato plants that produce more tomatoes.

When tomatoes cross pollinate, the genetic material of the two tomato varieties will combine and the seeds will be hybridized. Cross pollination will not affect the fruit, only the seeds inside.

8 0
3 years ago
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What is a specialized form of diffusion
andrew-mc [135]
Membrane is a form of diffusion  <span />
3 0
3 years ago
Why are the large finches now living on the galápagos islands different from the original source population from a nearby islan
Softa [21]

Answer:

The reasons are explained below -

Explanation:

The large finches living on the Galapagos islands are different from the original source population from a nearby islands because of the following reasons -

  • A natural selection favored only the large finches because they are more fit to the current environmental conditions.
  • A genetic drift has been occurred in the two populations living on the nearby islands.
  • Due to the separation of habitat on both the islands, the gene flow between the two islands is reduced.

All the above listed reasons are responsible for the difference in the finches found on the two islands.

3 0
3 years ago
HELP ME IM TO"not smart* AND I NEED THE ANSWER
fiasKO [112]

Given Proposition: The Shark Population has increased. This is assuming that we only base it off of the given food tree, rather than using the food web, which is more factually correct. This means that the sharks in the area can only eat sea otters, and that sea star populations and sea otters can only eat clams.

1) In this case, the shark population increases. This generally means that the sea otter population by itself has increased, suggesting a positive net change within the given food chain. However, with increased shark populations, would mean a damage to the amount of sea otters in the area. This can create an underpopulation of sea otters, which, if sea stars were not a factor, can mean a increase of clam population.

However.

2) Sea stars are a part of the food chain given. Therefore, it can be suggested that while the sea otter population may stabilize and/or diminish, the sea star has no "predator". This means that with the decrease of the sea otter population, the sea star population may actually grow, as the competition for the same source diminishes. Again, with the demand taking over the need, the sea star population may fall once again due to overfeeding, and essentially starvation.

In essence:

Shark Population: Increased

Sea Otter Population: Decreases (is eaten)

Therefore, Clam Population is speculated to increase.

However, the Sea star population would thereby increase due to having more food.

A larger sea star population in which the clam population cannot sustain would collapse, leading to a fall.

Also, due to the smaller amounts of sea otters in the area, the shark population may also see to an decrease of population, as they die from starvation.

The sea otter population would then stabilize when the predatory amounts or less, and their competition collapses.

Of course, there will always be a "food web". Sea otters do not solely rely on clams, neither do sharks solely rely on otters.

~

5 0
3 years ago
Read 2 more answers
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