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nydimaria [60]
3 years ago
11

Which is the best definition of a cellular membrane?

Biology
1 answer:
Mrac [35]3 years ago
5 0
A cellular membrane separates the interior of all cells from the outside environment.
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List the five characteristics a substance must have to be a mineral. Explain why coal and a glass marble are not minerals.
Angelina_Jolie [31]
<span>A mineral has to be naturally occurring, inorganic, solid, have a crystal structure, and have a definite chemical composition. Coal is not a mineral because it is carbon-based and came from fossilized plants. That proves that it is organic and has no definite chemical composition, defying two rules you would need to follow to be a mineral. Glass is a non-crystalline solid. This means that the atoms are not arranged in a regular and repeating pattern. A mineral by definition possess a crystalline form, it has its elements arranged in a regular and repeating pattern.</span>
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3 years ago
Why is it essential to use a stain as part of the smear prep?
zubka84 [21]

Answer:

Tne most basic reason that cells ate stained is to enchance visualization of the cell or certain cellular components under a microscope.Cells may be also be stained to highlight metabotic processesor to differentiate between live and dead cells in a sample

hope it helps,and have a lucky day....

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2 years ago
If food webs naturally balance themselves over time, why do we have so many endangered species?
lidiya [134]

Answer: humans

Explanation: Humans hunt animals to the point of extinction

4 0
4 years ago
Chemical reaction equations, such as the one for photosynthesis, show the reactants and products of a reaction. How does this si
Natali5045456 [20]

The right answer is It does not show that photosynthesis consists of many separate reactions.

It takes six molecules of carbon dioxide and six molecules of water to synthesize a molecule of glucose, releasing six molecules of oxygen, thanks to the light energy.

6 CO2 + 6 H2O + light energy ==> C6H12O6 (glucose) + 6 O2


<u>But this balance is in fact broken down into two successive stages:</u>

Light phase or photochemical phase:

12 H2O + light ==> 6 O2 + chemical energy (24 H).

The Calvin cycle (dark phase):

6 CO2 + chemical energy (24 H) ==> C6H12O6 + 6 H2O.

5 0
3 years ago
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