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Ilya [14]
3 years ago
14

A college student has been assigned to write captions for a new textbook on gravity and motion. This is one of the pictures from

the textbook.
Earth, the moon, and the orbit of the moon around Earth. The moon has one arrow pointing toward Earth, and one pointing down away from Earth.

Which caption best describes the thinner arrow?

The moon moves toward the Sun due to gravity.
The moon will move away from Earth because of inertia.
The moon would move in a circular path if there were no forces.
The moon would not stay in orbit without the pull of Earth's gravity.
Biology
1 answer:
denpristay [2]3 years ago
4 0

Answer:

D

Explanation:

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Which nucleic acid is pictured on the right? Justify your answer.
alukav5142 [94]

Answer:

Nucleic Acids:

- Uracil

- Adenine

- Guanine

- Cytosine

Explanation:

Since we only have one strand shown, I'm going to assume it is RNA. Both DNA and RNA have nucleic acids, but RNA has 1 different nucleic acid; it replaces Thymine with Uracil. So the 4 nucleic acids are uracil, adenine, guanine, and cytosine.

If the picture shown is a cross-section of DNA, then our 4 nucleic acids are adenine, thymine, guanine, and cytosine.

6 0
3 years ago
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Over time, what happens to a trait that is an advantage to an organism?
Charra [1.4K]
I remember back in 10th grade I learned that birds that had beaks that were easier to break the seeds carried those traits to their babies and the whole area had that type of beak since it was necessary to break some seeds. So the beaks that were a disadvantage no longer existed and the beaks that became an advantage passed along to all the other birds.

Side note: if they all had the same beak they could all fight for the same type of seeds and probably have some sort of intense competition but idk if that’s necessary
3 0
3 years ago
If a disease affected a paramecium's contractile vacuoles, stopping the normal functioning of the vacuoles, what would happen to
BabaBlast [244]

The paramecium would not be able to get rid of excess water so the cell would burst.

FUNCTION OF THE CONTRACTILE VACUOLE:

  • The contractile vacuole is an organelle present in protist organisms like paramecium, amoeba etc.

  • The contractile vacuole functions to regulate water balance in the cells of organisms that they are found. Contractile vacuole performs this function by storing excess water and expelling the out of the cell.

  • Hence, if a disease affected a paramecium's contractile vacuoles, stopping the normal functioning of the vacuoles, the paramecium would not be able to get rid of excess water so the cell would burst.

Learn more: brainly.com/question/13839668?referrer=searchResults

3 0
2 years ago
In the spleen, ___________ from red blood cells is broken down to form (unconjugated) bilirubin. Unconjugated bilirubin is insol
adelina 88 [10]

Answer:

Haemoglobin; liver; binds; stored; bile duct; small intestine; lipids.

Explanation:

Serology can be defined as the study of blood and the reactions between antibodies and antigens in the blood.

In Biology, blood pH can be defined as a measure of the hydrogen ion (H¯) concentration of blood i.e the level of alkalinity or acidity of blood.

Basically, the normal blood pH of a human being should be between 7.35 and 7.45.

Hence, one of the ways in which the body regulates blood pH is with proteins. Proteins help regulate blood pH by accepting and releasing hydrogen ions. Typically, when the blood pH falls, the hydrogen ions (H¯) are accepted (absorbed) while hydrogen ions are released when the blood pH rises.

For example, a protein such as haemoglobin which makes up a composition of the red blood cells, binds an amount of acid required to regulate blood pH.

In the spleen, haemoglobin from red blood cells is broken down to form (unconjugated) bilirubin. Unconjugated bilirubin is insoluble in blood plasma so binds to albumens in the blood and is sent to the liver. Bilirubin binds with glucuronic acid to form conjugated bilirubin. It forms part of the bile, which is stored in the gall bladder. Food in the gut stimulates gall bladder contraction and the bile passes down the bile duct to the small intestine, where it aids in the digestion of lipids.

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3 years ago
What type of reproduction occurs when animals produce cloned offspring?
Paladinen [302]
The correct answer is asexually, becauseit is not created with sperm
7 0
3 years ago
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