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3 years ago

What is chemical reaction

Biology

1 answer:

Kay [80]3 years ago

6 0

Answer:

A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.

Explanation:

Hope this helps

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What are the basic cell structures that impacts diffusion?

maria [59]

I only know one for the first one, don't be mad, please.

1. I'm pretty sure one of them is membrane

2. A cell can die through infection, poisoning, overheating, or even lack of oxygen.

3. I think it depends on how fragile the membrane of the cell is.

I'm so so so sorry if these didn't help, I'm trying my best, lol.

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3 years ago

4. Members of which of the following groups are planktonic as adults and possess a tail and notochord that persist into the adul

zysi [14]

From my knowledge I mostly think its Thalilacea

I think this because even though it can be Appendicularia too, Thalilacea has BOTH a tail and notochord in the adult stage

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3 years ago

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In an ________ solution, red blood cells ________. Group of answer choices hyposmotic, lose water and shrivel isomotic, have a n

lozanna [386]

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Q. In an ________ solution, red blood cells ________. Group of answer choices:

Hyposmotic, lose water and shrivel
Isomotic, have a normal shape ✔️
Isosmotic, swell and may burst
Hyperosmotic, have a normal shape
Isosmotic, lose water and shrivel

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In an isosmotic solution, red blood cells have normal shape.

Option B

<h3>Explanation:-</h3>

Osmosis : The movement of the solvent or water molecules from a solution of their higher concentration to a solution of lower concentration through a semipermeable membrane.

❍ Depending upon the osmotic concentration, There are three types of solution and their result when cell is keot inside them:

Hyposmotic (Water enters, Swells up)
Isosmotic(Equal flow, No change)
Hyperosmotic(Water comes out, shrinkage)

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3 years ago

7. Describe one shark from the Cenozoic era. What does the shark look like ?

vlabodo [156]

the Carcharodon megalodon is an extinct megatoothed shark. megalodon was an apex predator of its time, and possibly the largest and most powerful macro-predatory fish that ever lived. Carcharodon may have approached a maximum of around 67 feet in total length.

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3 years ago

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How do continents move?

rodikova [14]

Answer:

Tectonic plates.

Explanation:

The continents are embedded in the plates, like logs in the ice of a frozen river. As the plates move, the continents move with them. When two continental plates meet, one is dragged down beneath the other.

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3 years ago

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