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3 years ago

How does water and other molecules move across the membrane and in various solutions to maintain homeostasis

1 answer:

3 0

Osmosis of Water Across the Membrane. Osmosis is the tendency for water molecules to move from where there is a higher concentration to where there is a lower one. ... The cell membrane helps to regulate and slow down the flow of water into the cell. This is yet another way that the cell membrane helps maintain homeostasis

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evidence of the endosymbiosis theory was found in the : nucleus and cytoplasms, mitochondria and endoplasmic reticulum, mitochon

alina1380 [7]

Answer:

Mitochondria and chloroplasts

Explanation:

These two organelles support the theory in that both have 70S ribosomes, the presence of a circular DNA within, and similar size. They can undergo division within the eukaryotic cyptoplasm. Both of these organelles are surrounded by a double membrane, which in the case of chloroplast is known to originate from ancient bacteria that lost its peptidoglycan component. Mitochondria and chloroplast both evolved from ancient free living bacteria that entered into larger cells, which in the case of mitochondria is known to be archaea and in the case of chloroplast is a eukaryotic cell. With this, these cells became dependent on it in a manner that it could not exist without it.

<h3>Hope this helps!</h3>

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3 years ago

Which of the following is TRUE about earthquakes?

Vikki [24]

My answer would be "Earthquakes happen along cracks in the earth's surface, called fault lines, and can be felt over large areas"

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3 years ago

What are the precautions that should be token when using a photometer? please help me

Maksim231197 [3]

Answer:

PRECAUTIONS FOR USING A SPECTROPHOTOMETER :

1 . By allowing the lamps and electronics to warm up

2.By cleaning up any spills inside the cuvette compartment

3.By carrying out the set-up procedure in the correct order

4.By ensuring that %T or transmission is used as appropriate

5.By closing the door to the cuvette compartment before reading the result

6.By performing calibration checks after set up

7.By wiping fingerprints and spilt sample off the outside of the cuvette before measuring

8.By using the correct wavelength

PRECAUTIONS FOR USING A FRAME PHOTOMETER:

1. Do not move or Carry the unit when in use or connected to the mains electricity supply

2. There should be sufficient time for the chimney to cool before handling

3. Do not use acetylene with the flame photometer

4. Over adjustment of the fuel valve will cause excess flame

Do not position the product so that it is difficult to disconnect from the mains supply

5. Do not cover the chimney whilst in use.

6. Do not block or obstruct ventilation slots /airways

7. Do not operate or handle any part of the product with wet hands

I HOPE THIS WILL HELP AND IF NOT LET ME KNOW

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3 years ago

Some emus run fast (between 30-35 mph) and other emus run

Juliette [100K]

Answer:

you....your not asking anything?

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3 years ago

The twisted ladder shape of DNA is called a double ____.?

12345 [234]

<span>The twisted ladder shape of DNA is called a double </span>helix.

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3 years ago

Read 2 more answers