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3 years ago

8

The extensive connective tissue network, which encircles the bases of the pulmonary trunk and aorta and the valves of the heart,

is called the

1 answer:

coldgirl [10]3 years ago

5 0

It's called the fibrous skeleton

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The substance used to separate the proteins from the dna

Genrish500 [490]

DNA is deoxyribonucleic acid, which is insoluble in ethanol. In the process of centrifugation the addition of ethanol can aid to separate protein from its DNA.

<h3>What is centrifugation?</h3>

Centrifugation is a process of separating different molecules in a given sample that have different densities by rotating them in solution around an axis at high speed.

It is the frequently applied techniques in the molecular biology laboratory.

The addition of alcohol or ethanol to the sample followed by centrifugation can separate the proteins from its DNA.

Thus, the substance used to separate the proteins from the DNA is alcohol or ethanol.

For more details regarding centrifugation, visit:

brainly.com/question/12954017

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3 years ago

A student is feeling inside her backpack to find her mobile phone. There are a number of other items in the backpack. Which comp

notsponge [240]

Answer:

80

Explanation:Because 2 times 2 is 4. 4 times 10 is 40. 40 times 2 is 80

Hope this helps :)

8 0

3 years ago

What kinds of plants were transformed into coal? bryophytes gymnosperms ferns and their relatives angiosperms?

cupoosta [38]

<span>Some of the plants that made up coal were various ferns, and trees that no longer exist, like the lepidodendron, which was a scaly trunk with no limbs. Calamites, which are similar to the horsetail plant seen today. Seed ferns and glossopterids, also now extinct, were a basis for coal composition.</span>

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3 years ago

Can someone check if these are the correct parts of the brain? I am most unsure about the spots where I said limbic system and a

Schach [20]

I think it looks great, you did good!!

5 0

4 years ago

Types of plants and the use if plants

egoroff_w [7]

Plants include familiar types such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae.

8 ways we use plants in everyday life...

Upset Stomachs. We use mint to cure upset stomachs. ...
10 ways we use plants in everyday life... Chelsea Kay. ...
Oxygen. Plants give us oxygen, and we give them carbon dioxide. ...
Aloe. We use trees for heat, such as burning fire wood. ...
Clothes. We use cotton to make clothes. ...
Lumber. Cotton plants. ...
Tea. Oak trees. ...
Paper.

<h3>Hope it helps </h3>

6 0

4 years ago