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yarga [219]
3 years ago
7

What jobs do cells have?

Biology
1 answer:
neonofarm [45]3 years ago
3 0

Answer: Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.

Explanation:

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Which feature of earth is created at mid ocean ridges
777dan777 [17]

The correct answer is - underwater mountain ranges.

The mid-ocean ridges are actually underwater mountain ranges, which usually are very long, in fact the longest mountain range on Earth is created on the divergent boundary between the Eurasian and North American tectonic plates and between the African and South American tectonic plates. At the divergent tectonic boundaries we have the creation of new crust which rises from the mantle and fills in the gap between the tectonic plates. Because of the big amount of magma and high pressure, very big and long underwater mountain ranges are formed.

4 0
4 years ago
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Diffusing molecules move ________ until they are ________. Through channels of active transport proteins; evenly distributed up
koban [17]

Answer;

-Down the concentration gradients; evenly distributed

Diffusing molecules move down the concentration gradients until they are evenly distributed.

Explanation;

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration.

-Whenever a substance exists in greater concentration on one side of a semipermeable membrane, such as cell membranes, any substance that can move down its concentration gradient across the membrane will do so. If the substances can move across the cell membrane without the cell expending energy, the movement of molecules is called passive transport.

-The mechanism of molecules moving across a cell membrane from the side where they are more concentrated to the side where they are less concentrated is a form of passive transport called simple diffusion.

4 0
4 years ago
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Describe some of the modifications that polypeptide chains undergo before becoming functional proteins
umka2103 [35]
Polypeptide chains undergo some modifications before they become fully functional. Some of these modifications include: proteolytic cleavage, lipidation and glycosylation. Proteolytic cleavage refers to the removal of some amino acids from a polypeptide chain by proteases in order for the protein to become active. An example of a substance that is modified through this process is insulin.
4 0
3 years ago
Is the climate exactly the same all over the world
Nimfa-mama [501]
No it's not because the weather changes because of the sun and moon
7 0
4 years ago
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Hemlocks are a common type of tree in the northern forests of the United States. In studying one forest, a forester noticed that
Vlada [557]

Answer:

b. making an observation and asking a question

Explanation:

In scientific method there need to be a situation to be study. In this description, the scientist first observed that in a certain region there is some kind of trees and the other variable is the great amount of deer.

After making different observations, and some research of other areas similar to the one that is study, she is asking what is the relation among the animals and the trees.

The next step will be to formulate a hypothesis using all the data and the two variables that she observed.

8 0
3 years ago
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