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myrzilka [38]
3 years ago
15

Where do antibodies come from? Please Help

Biology
1 answer:
jolli1 [7]3 years ago
3 0

Answer:

Antibodies are produced by specialized white blood cells called B lymphocytes (or B cells). When an antigen binds to the B-cell surface, it stimulates the B cell to divide and mature into a group of identical cells called a clone.

Explanation:

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A person with a traumatic brain injury now exhibits some symptoms including
natali 33 [55]

Answer:

C. Frontal lobe

Explanation:

brainly.com/question/19362353

The frontal lobe of the brain, behind the forehead, is strongly associated with motor function, spontaneity, impulsive behavior, judgement decisions, and social behaviors and mood.

7 0
2 years ago
Match each lipid with its correct components or description.
Mumz [18]

Answer:

(1) glycerophospholipids ⟶ (C) lipids with phosphate-containing head groups

(2) cerebrosides ⟶ (D) fatty acid linked through an amide bond to the sphingosine C(2)-amine

(3) gangliosides ⟶ (B) anionic sphingolipids containing one or more sialic acid residues

(4) sphingolipids ⟶ (A) built on sphingosine

Explanation:

1) Choline (Fig. 1) is a glycerophospholipid. It is a glycerol-based lipid with a phosphate-containing head group.

(2) Galactosylceramide (Fig. 2) is a cerebroside. It contains a fatty acid linked through an amide bond to the sphingosine C(2)-amine

(3) Gangliosides are glycosphingolipids that contain sialic acid. GQ1b (Fig. 3) is one of the most abundant gangliosides in the human brain. The carboxyl group of the sialic acid is in the ionic form.

(4) Sphingomyelin (Fig. 4) is a sphingolipid. It is based on sphingosine, with a phosphocholine head and a fatty acid chain.  

7 0
4 years ago
In a resting state, sodium (Na ) is at a higher concentration outside the cell and potassium (K ) is more concentrated inside th
padilas [110]

In a resting state, sodium (Na ) is at a higher concentration outside the cell, and potassium (K ) is more concentrated inside the cell. During an action potential, the sodium levels <u>increase </u>inside the cell.

During an action potential, the potassium level inside the cell decreases, and the sodium level inside the cell increases. That is to say, there is an outflow of potassium and an inflow of sodium ions.

Action potential usually occurs when an electrical signal disrupts the balance of Na+ and K+ within a cell membrane, briefly depolarizing the concentrations of each.

Learn more about potassium here: brainly.com/question/21439467

#SPJ4

3 0
2 years ago
The plants in the were allowed to self-pollinate. the plants in the are true breeding. after a cross, there are three times as m
Shalnov [3]
Dentifying the Generation<span>For each of the following statements, indicate whether the statement describes the P generation, F1 generation, or F2 generation.

The plants in the F1 generation were allowed to self-pollinate.

The plants in the P generation are true breeding.

After a cross, there are three times as many tall plants as there are short plants in the F2 generation.</span>
3 0
3 years ago
Read 2 more answers
What is the shape of a drop of water?
Shalnov [3]
If the drop is small enough, it is a perfect sphere.
<span> A sphere is the geometrical shape that has the smallest surface area for its volume. The drop takes this shape because water molecules tend to stick to each other. So, when not confined by a container, and with nothing around it to distort its shape, a very tiny water drop is perfectly round like a ball because the water molecules are pulling inward toward each other. </span>

<span>If the drop is larger like a raindrop in free-fall, it has a domed top and a semi-flattened bottom because as it falls it must push the air out of its way. That "upward" push of the air being displaced causes the falling drop to have a rather flattened bottom. </span>

<span>Contrary to popular misconception, a free-falling raindrop is not shaped like a teardrop -- round on the bottom and pointy on top.

From:</span>https://www.quora.com/When-a-water-drop-falls-does-it-form-a-circular-shape
7 0
3 years ago
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