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charle [14.2K]
4 years ago
7

Please Help asp

Biology
1 answer:
solmaris [256]4 years ago
8 0

Answers:

1. Facilitated diffusion: the process by which some molecules that are not able to pass directly through a cell membrane are able to enter the cell with the aid of transport proteins.

2. Osmosis: the diffusion of water molecules through a selectively permeable membrane.

3. Diffusion: the spreading out of molecules across a cell membrane until to they are equally concentrated.

Step-by-step explanation:

Diffusion is the spontaneous movement of molecules across a membrane from an area of high concentration to one of low concentration gradient.

Osmosis is the diffusion of water molecules across a semipermeable membrane from an area of low solute concentration to one of high solute concentration.

Facilitated transport occurs when molecules cannot diffuse directly through a cell membrane but can diffuse down a concentration gradient through transport channels in the membrane.

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Bacteria, archaea, plants, protists, animals, and fungi, can use cellular respiration.

And the main ones that use celluar respiration are autotrophs and heterotrophs.

Hope I helped you out (:

4 0
3 years ago
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Which of the following statement is true?
AleksandrR [38]

Answer:

The active site of an enzyme is the region of an enzyme where substrate molecules bind and undergo a chemical reaction.

Explanation:

This is because enzymes catalyses reaction by first lowering it activation energy and then bind to the reactants and convert the substrate to products. This take place in the active site. This active site is that area or region where the activation energy is lowered and the substrate molecules is bind to produce products.

6 0
3 years ago
Imagine that a clam accumulates one unit of mercury in its body from the water it lives in. How many units of mercury would a st
DochEvi [55]

Answer:

182,500 units.

Explanation:

<em>The answer would be </em><em>182,500 units of mercury.</em>

<u>Assuming there is an average of 365 days in a years, 10 years is therefore equal to:</u>

10 x 365 = 3650 days.

<u>The stingray eats 50 clams per day. Hence, the total number of clams that would have been eaten in 10 years equals:</u>

3650 x 50 = 182,500 clams

<u>Each clam accumulated 1 unit of mercury in its body from the water it lives in and there is no loss of mercury between the clam and the stingray. Hence, the total number of units of mercury the stingray would have accumulated in 10 years equals:</u>

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3 0
4 years ago
Which statements describe transform boundaries? A) Rift valleys are formed. B) Mountains are created. C) Faults form in the lith
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C) Faults form in the lithosphere.

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Faults form in lithosphere is part of transform boundaries because the plates simply slide past each other without causing any change to the lithosphere (i.e it is neither created nor destroyed) which is why transform boundaries are also sometimes referenced when we speak about phenomena related to when plates slide in opposite directions.

4 0
3 years ago
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Plz help its for a big grade <br>needs at least (10 sentences)!!!!!​
ICE Princess25 [194]

Answer:

Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.

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Neutrons (having no charge) and protons are present in nucleus. Electrons keep revolving around the nucleus in different shells.

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3 years ago
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