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Lapatulllka [165]
3 years ago
15

Why does DNA migrate to the positive electrode?

Biology
1 answer:
ale4655 [162]3 years ago
5 0
DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode.
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Examine the photographs of 16 species of anole lizards and sort them into as many groups as you want according to how they appea
n200080 [17]

Answer:

On the basis of physical appearance.

Explanation:

We grouped the lizards into various groups on the basis of similarities and differences in the body structure, appearance and colour etc. The legs of anole lizards are small legs with pads on their feet for gripping surfaces which give them the advantage to climb up the trees while on the other hand, these small legs can't help in the survival on the land because they can't run too fast from their predators with these short legs so these legs has benefit in climbing the tree but disadvantage in running on the land.

8 0
3 years ago
There are ___________ pair of true ribs.
Bad White [126]

Answer:

7

Explanation:

There are 12 total pairs of ribs. 1-7 are attached directly to the sternum by costal cartilages, making them true pairs. 8-10 are fake pairs, which means they're attached indirectly to the sternum. And 11 and 12 and free floating ribs, meaning they aren't attached.

5 0
3 years ago
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A.arteries from aorta
Illusion [34]

1. C
2. A
3.D
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We know that arteries from the aorta and arteries from coronary arteries supply oxygenated blood to various parts of the body. What separates these two is the coronary arteries’ ability to deliver oxygenated blood to the heart.
We know that the inferior vena cava delivers deoxygenated blood to the lower (hence inferior) part of the body and that the superior vena cava delivers deoxygenated blood to the upper (superior) part of the body; they follow the same deoxygenated rule and strictly deliver nutrients to certain parts of the body.

I hope I helped! :)
5 0
3 years ago
What are 2facts about physical properties?
LUCKY_DIMON [66]

Answer:

Explanation:

can be observed and measured without changing composition (just say comp.), are used to observe and describe

6 0
3 years ago
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Use what you have read to summarize Jackie Robinson’s story in two or three sentences.
Ilia_Sergeevich [38]

Answer:

Jackie Robinson’s story is the story of struggle, motivation and courage.

Explanation:

Jackie Robinson is base ball player in the baseball team of America. He was the first African who played in the American team. At that time racial superiority at its peak due to which their teammates hurts him with words and with physical action but he did not lose his temper and focus on his game which make him a hero in his team. He was the name of struggle, motivation and courage. From his story, many people inspired and make their life better.

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3 years ago
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