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professor190 [17]
3 years ago
15

The Great White Shark is one of the most fearsome predators in the ocean. Why is it mainly found in colder temperate seas

Biology
1 answer:
Naddik [55]3 years ago
5 0

Answer: The are found in colder seas because that is where its prey lives and they have a high metabolism.

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Cellular respiration occurs within the ________ of a cell.
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Explanation:

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A man travelling in a train threw an empty packet of food on the platfrom. Do you think this is a proper waste disposal method?
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No it is not a proper waste disposal method

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A man travelling in a train and throwing an empty packet off food on the platform and not inside the waste basket provided is definitely not a proper waste disposal. the best waste disposal method he would have used was throwing the waste in a waste bin

waste water management is the process of managing waste water emanating from homes or industries and controlling the negative impact this waste water would have on the environment. and one way to do that  is the proper treatment of the water which entails removing contaminants from the waste water and converting the waste water into a useful effluent that can be used again ,

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Which of the following stages of the cell cycle happens last?
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C. telophase and cytokinesis

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Which of the following is a way of storing carbon in organic material?
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What would be the best explanation for why myelinated fibers conduct signals faster than unmyelinated fibers?
Sliva [168]

Answer: The diffusion of ions along the axoplasm is faster,in myelinated compare to unmyelinated,

Neurons are the structural and functioning units of nervous system.They are the vehicles for transmission of impulses as electrical signals from one part of the cells,and from one part of the body to another.

The basic structural components of a typical neuron are the cellbody, the axon, and the dendrites.

Based on structure neurons are classified as myelinated and unmyelinated.This is based on the the surrounding layer of myelin sheath around the axon. The myelin provides the insulating layer for the axon.And ensures fast movement of impluses.

In myelinated neurons the myelin sheath are interrupted at intervals by gaps along the length of the axon called Nodes of Ranvier. These gaps contains more Na-K channels for influx and out-flux of K and Na+ ions for transmission of impulses.

The cytoplasm of axon is called axoplasm,Since this is surrounded by myelin sheath which contains Na-K+ channels,The rate of diffusion of ions along  these channels is faster for depolarization to take place than in unmyelinated neurons. Inaddtion as these ions  diffusion increases,its jump faster at the nodes of Ranvier (saltatory conduction) to the next axoplasm which further speed up the rate of transmission.

Unmyeinated lacks myelin sheath,therefore the exchange and  the rate of diffusion of ions along the axons is low.

Explnation:

6 0
3 years ago
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