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Makovka662 [10]
3 years ago
14

HIV weakens the immune system by killing

Biology
1 answer:
san4es73 [151]3 years ago
4 0
T-cells.These<span> are cells that help the immune system fight against disease and infections in the body. </span>
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Bacteria perform the following ecological roles. Which role typically does not involve symbiosis?
xz_007 [3.2K]

Answer: Decomposer

Explanation:

Bacteria feed on the dead and decaying organism, in which they feed on them and obtain energy from them.

It is not a mutual relation because the host cell on which they feed is not alive. They eat the organic matter that is present in environment.

The bacteria and fungi clean the environment in this way. The dead plants and animals are decomposed in the environment and the nutrients get back  into the soil.

hence, the correct answer is option B

7 0
3 years ago
How many times does the calvin cycle have to turn to make one glucose molecule
Maurinko [17]

Answer:

Im not sure what are the choices?

Explanation:

4 0
4 years ago
Please help
Gekata [30.6K]

Answer:

justin

Explanation:

because there is no gravity in space

3 0
4 years ago
What is the volume of a cone if height is 27 cm and radius is 7cm​
Leokris [45]

The formula for the volume of a cone is V=(1/3)πr^2h, where V is volume, r is radius, and h is height.  Plug in and solve:

V=(1/3)π7^2(27)

V=49(9)π

V=441π

V=1385.4412cm^3

Hope this helps!!

5 0
3 years ago
If the sun were to suddenly stop providing energy to Earth, most ecosystems would vanish. Which of the following ecosystems woul
Alchen [17]

Answer:

The correct answer is C) benthic ocean

Explanation:

Sun is the ultimate source of energy for almost all the organisms present on the earth. The organism that especially lives on land are highly dependent on solar energy because all the plants and most algae require sunlight to make their food and they are the primary produces on which other organism are dependent.

Benthic ecosystem are the ecosystem that is present at the very depth of the ocean or on the ocean floor. So in that much depth, there is very little or no penetration of sunlight occurs. So the ecosystem there does not directly depend on sunlight for there survival. So they benthic ocean ecosystem would likely survive the longest.

5 0
3 years ago
Read 2 more answers
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