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azamat
2 years ago
5

PLEASE HELP!

Biology
1 answer:
PIT_PIT [208]2 years ago
6 0

Answer:

All the ones listed below are true

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Does weather stay the same all the time
HACTEHA [7]

Answer:

no

Explanation:

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3 years ago
Which of the following contains its own DNA and ribosomes? A) lysosome B) vacuole C) mitochondrion D) Golgi apparatus E) peroxis
Vladimir79 [104]

<em>Answer:</em>

<em>C) </em><u><em>mitochondrion</em></u>

Explanation:

Mitochondria mitochondria is a semi autonomous organelle.

/) /)

( . . ) <em>hope this helps!</em>

<em>(     )</em>

6 0
3 years ago
Once they have penetrated the first line of defense, which microorganisms do natural killer (nk) cells actively attack?
stellarik [79]

Once they have penetrated the first line of defense, NK cells are the principal defenders against only tumor cells or virally infected cells.

<h3>What are NK cells?</h3>

A particular class of immune cell that contains granules, or tiny particles, that contain enzymes that can destroy cancer cells or virus-infected cells. White blood cells, or NK cells, are one type of them. known as NK-LGL and natural killer cell, respectively.

Natural killer (NK) cells are effector lymphocytes of the innate immune system that regulate various tumour types and bacterial infections by preventing their growth and subsequent tissue damage.

Human NK cells are created from hematopoietic stem cells (HSCs), and as they transition from being CD56high to CD56low, KIRs, CD57, and NKG2C are expressed on terminally differentiated NK cells. During this time, NKG2A is gradually lost.

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8 0
2 years ago
Oil is a fossil fuel used to run cars, heat up homes, and produce electricity. Oil can be removed from the bottom of the ocean t
skad [1K]

Answer:

Explanation:

pls mark brainliest

1. air
2.water
3. organisms in water

these 3 are affected by the oil spills

7 0
2 years ago
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Vitamin B6 is essential for the synthesis of Select one: A. memory cells. B. iron. C. heme. D. T cells.
strojnjashka [21]

Vitamin B6 is essential for the synthesis of T cells. These cells form part of the immune system.

<h3>What is Vitamin B6?</h3>

Vitamin B6, also called pyridoxine, is a water-soluble micronutrient found in different types of foods.

Vitamin B6 is required to generate T cells and white blood cells (lymphocytes), which are cells of the immune system.

Vitamin B6 is also fundamental for the generation of interleukin-2, which is a molecule involved in immune responses.

Learn more about vitamins here:

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7 0
3 years ago
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