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Lisa [10]
3 years ago
12

Structures in the cell

Biology
2 answers:
allochka39001 [22]3 years ago
5 0

A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.

Eddi Din [679]3 years ago
4 0
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
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HELP! Describe the interaction between the digestive and circulatory system of the earthworm.
kondaur [170]

Answer:

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6 0
3 years ago
Una célula muscular de una especie tiene 20 cromosomas, ¿ cuantos cromosomas crees que tiene una célula nerviosa de la misma esp
irina1246 [14]
46 Cromosomas

Las células del ser humano tienen 23 pares de cromosomas, 22 pares de autosomas y un par de cromosomas sexuales. Por tanto, cada individuo tiene 46 cromosomas en sus células. Por lo tanto, el número de cromosomas presentes en una célula nerviosa de un ser humano es de 46 cromosomas.
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3 years ago
A beaker of water is separated by a selectively permeable membrane that allows the passage of water but not ions. A solution of
postnew [5]

Answer:

osmosis

Explanation:

The process that was going is <u>osmosis</u>.

<em>Osmosis is the movement of water molecules from regions of high water potential to regions of low water potentials through a selectively permeable membrane.</em>

In this case, the membrane is only permeable to water movement and not ions and water molecules move from the side with pure water (which happens to have higher water potential) to the side with 4% sodium chloride until equilibrium in water potential is established between the two sides.

3 0
2 years ago
Adaptive defenses include humoral immunity only. Memory B cells areproduced as soon as the B cell binds to an antigen. Adaptive
Rina8888 [55]

Answer:

Adaptive defenses include both humoral and cellular immunity.

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Cell-mediated immunity includes T cells (cytotoxic and helper T cells) while antibody-mediated immunity includes the production of antibodies from B cells. Binding of antigen to B cells is followed by their transformation into plasma cells and produce antibodies. Some of the activated B cells form memory B cells that are responsible for quicker and strong secondary immune responses.

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3 years ago
What are the longest cells(when mature) in the human body?
Vinil7 [7]
I believe it is muscle cells, I'm sorry if this is incorrect.
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3 years ago
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