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Ilya [14]
3 years ago
13

1. How is osmosis defined?

Biology
1 answer:
natta225 [31]3 years ago
8 0

1.) D

2.) A,B

3.)  1) A saturated salt solution is definitely hyper tonic.

     2) Depending on the cell and the salt, there will be an isotonic concentration, where everything is balanced.

4) 1) Water tends to enter the Paramecium.

This is a process of passive transport.

This is a case of osmosis. In osmosis the SOLVENT travels from a region of low solute density to region of high solute density.

   2) Paramecium have what is called a contractile vacuole which contracts forcing water out to keep a stable osmotic pressure in the cell. Considering the vacuole would need to use energy is would be active either way

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Answer:

1. Head, neck, upper limb, thorax - super vena cava - top of the right atrium.

2. Lower limb - inferior vena cava - bottom of the right atrium.

Explanation:

The Heart pumps the oxygen-rich blood to the different parts of the body to Otake oxygen and nutrients to these organs and then takes the oxygen-poor blood returns from the body to the heart.

The two major vessels that return oxygen-poor blood to the heart are 1. superior vena cava (SVC) that drainages Head, neck, upper limb, thorax and terminate at top of the right atrium, and 2. inferior vena cava (IVC), Lower limb and terminate at bottom of the right atrium.

1. Head, neck, upper limb, thorax - super vena cava - top of the right atrium.

2. Lower limb - inferior vena cava - bottom of the right atrium.

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i hope this helps

Explanation:

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