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horsena [70]
3 years ago
6

How are the sun and moon diffrent

Biology
1 answer:
Mice21 [21]3 years ago
4 0
Sun is a star and it emits it’s own light
Moon is a satellite it won’t emits its own light
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The __________ is the organ most closely associated with platelet storage and destruction. is the organ most closely associated
Neko [114]

Answer: Spleen

Explanation:

The Spleen is an organ situated above the stomach and carry out important functions for body defence. This functions include:

- destruction of old red blood cells

- elimination of wastes such as dead platelets from the bloodstream

- storage of newly formed platelets.

8 0
4 years ago
2
serious [3.7K]

Answer:

The most correct option is carbohydrates & lipids

Explanation:

Carbohydrates are organic compounds that contain carbon, hydrogen and oxygen [for example starch, (C₆H₁₀O₅)ₙ] while lipids generally contains carbon, hydrogen and oxygen [for example fatty acid, CH₃(CH₂)ₙCOOH] but could also contain other elements like sulphur and phosphorus.

Proteins are made up of building blocks called amino acids. Amino acids are made up of an amino group which consist of nitrogen and hydrogen. Hence, <em>proteins have a large number of nitrogen atoms thus not part of the answer.</em>

<em>Nucleic acids are composed of nitrogenous bases and phosphate groups and are also not part of the answer for this reason.</em>

5 0
3 years ago
Why do increased temperatures decrease photosystem II activity?
Alex787 [66]

Answer: Options are not given, here are the options.

a.Thylakoid membranes become more permeable to ions

b.The chlorophyll breaks down

c.The peripheral proteins lose their ability to bind to the transmembrane proteins

d.Water cannot bind to PSII to form oxygen

The correct option is C.

The peripheral proteins lose their ability to bind to the transmembrane proteins.

Explanation:

In photosystem 11, it is the center where light is converted to moving electrons. When the chlorophyll molecule absorb light, the electrons gain energy.

Increase temperature affects the activity of photosystem 11 because the peripheral protein lose their ability to bind to the transmembrane protein which is as a result of high temperature affecting the surface of ionic interactions which is for binding to transmembrane protein.

6 0
3 years ago
Why can a planet orbit circular?
Alla [95]

Answer:

Explanation:A circle is merely a special case of an ellipse. However, the planets do not quite move in ellipses either. The increased kinetic energy of a planet as its distance from the Sun decreases causes it to behave as though it had a greater mass, which results in the point of the orbit furthest from the Sun precessing.

4 0
3 years ago
Using the food web above, what percentage of the total energy entering the system will the hawk receive?
leva [86]

Answer: 0.1%

Explanation: I remember taking the test and it should be 0.1%, because it go's through all the other animals and last, the hawk.

6 0
3 years ago
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