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Gre4nikov [31]
4 years ago
10

Which types of organisms have a cell wall and which have a cell membrane.

Biology
1 answer:
Ratling [72]4 years ago
6 0
All plants have a cell wall, all mammals have a cell membrane. a cell membrane is semi-permeable it allows mammal cells to absorb needed nutrients, oxygen and deposit waste into the blood stream where it is excreted through urine and feces. a plant cells nutrients are absorbed through the root system and leaves, waste is excreted in the form of oxygen through the plant itself.
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some activated b cells will migrate to the follicles, where they continue to differentiate with the help of follicular t helper
Leya [2.2K]

Some activated b cells will move to the follicles where, with the aid of follicular t helper cells in the spleen and lymph nodes, they continue to differentiate.

<h3>B-cell differentiation: </h3>

In reaction to the antigens, these cells develop in the bone marrow and create antibodies. Humoral reaction involves B lymphocytes. B cells create plasma cells and memory B cells as soon as they come into contact with the antigens.

In the spleen and lymph nodes, B-cells develop into plasma cells. An immunoglobulin receptor on each B-cell can bind to a single, distinct, unprocessed antigen. After being exposed to an antigen, B cells release interleukins to become active.

For more information on B-cell kindly visit to

brainly.com/question/27076742

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5 0
2 years ago
An extreme disturbance happens in an ecosystem. How does an ecosystem change as succession happens after this disturbance?
ddd [48]

Answer:

There is less biodiversity in the ecosystem.

Explanation:

Since the barren ground doesn't provide suitable living conditions for most of the living organisms, the ones that need the lest resources to survive create the primary succession, usually the mosses and lichens. The organisms of the primary succession provide biomass, so the ground is mixing with it, thus new soil is forming.

5 0
3 years ago
Read 2 more answers
anomaly occurs when the tunica vaginalis completely surrounds the testis, epididymis, and distal spermatic cord, allowing them t
Wittaler [7]

Answer:a

Explanation:

6 0
3 years ago
The big bang theory states that the universe was formed as the result of a huge explosion.   How did the universe begin, accordi
frez [133]
In simpler terms, the Big Bang theory says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today. In the first second after the universe began, the surrounding temperature was about 10 billion degrees Fahrenheit (5.5 billion Celsius). The cosmos contained a vast array of fundamental particles such as neutrons, electrons and protons. These decayed or combined as the universe got cooler. Over time, however, the free electrons met up with nuclei and created neutral atoms. This allowed light to shine through about 380,000 years after the Big Bang.
5 0
3 years ago
Which word best describes Closeness to the true value
Dmitry [639]

Answer:

Accuracy

Explanation:

In science, accuracy describes closeness to the actual value, rather than precision, which describes closeness to your own experimental values.

In mathematics, deviation best describes variation from the actual value to the observed value.

I would assume you're looking for the first answer.

8 0
3 years ago
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