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Colt1911 [192]
2 years ago
9

Which instrument is a scientist most likely to use to explore black holes in space?

Biology
1 answer:
Papessa [141]2 years ago
8 0

Answer:

x-ray telescope

Explanation:

this is what they use t explore black holes in space

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36. how can you increase surface area but not volume of an object? biology
solong [7]
Folds, wrinkles, etc!
by folding the membrane of an organelle, surface area is optimized while volume remains the same. that is why mitochondria looks folded on the inside when you see pictures of it. the higher the surface area to volume ratio, the more efficient the organelle.
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2 years ago
Why do living things need energy at all times
german

Answer:

Cells cannot survive on their own. They need power to stay alive. They need energy to perform functions such as growth, maintaining balance, repair, reproduction, movement and defense. This means all living organisms must obtain and use energy to live.

Explanation:

Hope this helps! :)

6 0
3 years ago
Which of the following is true of hydrogen bonds
Schach [20]
B. Hydrogen bonds make the positive sides of water molecules stick to each other
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3 years ago
Which molecules of the adaptive defense system provide humoral immunity by circulating freely in the blood and lymph, where they
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Answer:

Adaptive immune defense system consists of lymphocytes like B-lymphocytes and T- lymphocytes. B-lymphocytes provides humoral immunity while T- lymphocytes provide cell-mediated immunity to the body.

99% of lymphocytes circulate freely in the blood and lymph. B lymphocytes differentiate into plasma B cells and B memory cells when interact with antigen presented by T helper cells.  

Then plasma cells secrete antibodies in the circulation which binds to extracellular antigens through antigen-binding site. Then the bounded antigen is recognized by receptors present on phagocytic cells. This receptor binds the Fc region of antigen bounded antibody and destroy the antigen by phagocytosis.

5 0
2 years ago
Imagine you are an astronomer who recently discovered a star with a system of planets. What
irina1246 [14]

The planets closest to the star are rocky planets formed by elements with high melting points. Moreover, planets far away are gaseous planets and they are composed of elements with lower melting points.

<h3>Rocky planets and gaseous planets</h3>

The rocky planets consist of silicate rocks and/or metals, whereas gaseous planets are mainly composed of hydrogen and helium.

The rocky planets of the solar system include planets closest to the sun, i.e., Mercury, Venus, the Earth, and Mars.

The gaseous planets of the solar system include faraway planets, i.e., Jupiter, Saturn, Uranus, and Neptune.

Learn more about rocky planets here:

brainly.com/question/17428928

3 0
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