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Inessa05 [86]
3 years ago
10

What are the space limitations for human population growth?

Biology
1 answer:
Nonamiya [84]3 years ago
8 0
If you’re talking about too many people I’m guessing the limitation factors would be lack of resources and that would include lack of food and space.
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What are the three parts of the body responsible for the excretion of excess water
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The organs that are involved in the excretion of water from the body include:

1. Kidneys (Primary organ for water removal)

2. Skin

3. Lungs

The kidneys play a key role in maintaining the water balance of the body. The kidneys control the water levels in the body by conserve water when there is shortage, and they can expel excess water by diluting the urine.

The skin has water in it. This water gets lost to the atmosphere by the process of evaporation. This is independent of the process of sweating wherein the skin actively releases water in the form of sweat to cool the body.

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3 years ago
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Need help with these two questions
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The opening of which of the following types of ion channels will lead to a depolarization? A chemically gated sodium channel 2)
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All of them will lead to depolarisation.

<h3><u>Explanation</u>:</h3>

Depolarisation is a phenomenon ebochor occurs in the excitable tissues of our bodies, namely the neurons and the muscle T junctions. Here the membrane is already polarised by means of difference in charges as well as concentration of ions on both sides of the cell membrane. With a single stimuli, this change in concentration is gone, and this is de polarisation.

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Now this opening of the ion channels can be triggered by means of different stimuli. In case of neurons, the opening of the post synaptic ion channels are guided by the chemical impulse taking in synapse.

In case of inter neuron transfer, the ion channels open due to change in voltage of the previous part of the axon.

In case of organ of Corti, the sodium channels open due to mechanical events occurring inside cochlea. So ion channels can open in any form will lead to change in potential.

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