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Finger [1]
3 years ago
14

A protein channel is the transportation protien that

Biology
2 answers:
Shtirlitz [24]3 years ago
4 0
That molecule can only cross the cell membrane if the particular carrier protein is available. There are two types of transport that use channel proteins. The first type does not require energy to move the substance across the cell membrane. This is called facilitated diffusion.
Cerrena [4.2K]3 years ago
3 0
Whats the answers needing to be provided?

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What gives a male widowbird greater reproductive success?
Romashka [77]

Answer:

Food and feeding

The long-tailed widowbird's diet generally consists of seeds, supplemented occasionally by arthropods. The birds do most of their foraging in flocks on the ground, though they are occasionally observed hawking insects airily.

6 0
3 years ago
Which of the following is true regarding normal quiet expiration of air?a. It is a passive process that depends on the recoil of
nikklg [1K]

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Statement true regarding normal quiet expiration of air s

b) It is a passive process that depends on the recoil of elastic fibers that were stretched during inspiration.

Explanation:

5 0
3 years ago
Read 2 more answers
One student uses a flat toothpick as a mining equipment in a cookie mining lab. In your own words, explain how changing mining t
goldenfox [79]
I think that the fact that it is a cookie mining lab it would not apply at all in the real world but the pros and cons on one hand. pros the flat toothpick will make bigger chucks come off and easier to mine,but the cons are that the flat toothpick will not be as precise as a normal toothpick and may make the cookie not usable.

this is not my answer i did some research and came up with this sorry it is so late and i hope it helped:)<span>
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7 0
4 years ago
What do birds short necks help them to do? pls help :/
Fiesta28 [93]

Explanation:

Most diving birds have (relatively) long necks and shorts legs, although their necks aren't as long as say herons, storks or egrets. Take the common loon for instance. Their necks can be up to half as long as their bodies but their legs are so short and set so far back that they are very awkward on land.

4 0
3 years ago
Read 2 more answers
Plz help cause I don’t think this isn’t right at all
melamori03 [73]

Answer:

From left to right side

Explanation:

Diffusion is the process in which molecules move from a place of higher concentration to a place of lower concentration until a point comes when the concentration of the molecules is balanced in the both areas.

Now, if we look at the diagram, we see that molecules are highly concentrated on the left side, and next to that side is a semi permeable membrane through which they are getting diffused into the right side of the cell.

So, looking at it, it is very clear that molecules will move from left side (the most concentrated side) to te right side (the less concentrated side).


Hope it help!

8 0
3 years ago
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