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qaws [65]
3 years ago
13

What does earth's crust and uppermost mantle form

Biology
2 answers:
Dmitrij [34]3 years ago
7 0

The earth's crust and uppermost mantle form the lithosphere.

Nostrana [21]3 years ago
6 0
The crust<span> and upper </span>mantle<span> of the Earth </span>form<span> the lithosphere.</span>
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Which substance on the plasma membrane helps identify chemical signals from outside the cell?
cluponka [151]

Answer:

<em><u>The correct option is A) carbohydrate chain</u></em>

Explanation:

The carbohydrate chain present in the cell membrane helps determine the characteristics of the cell and it also helps to identify the chemical signals from outside the cell. Hence, option A is correct.

Other options, like option B, is not correct because the function of the cholesterol in the cell membrane is to prevent the fatty acids from sticking together. Option D is not correct because transport proteins help some molecules to move inside the cell.

6 0
3 years ago
James Watson and Francis Crick with, the help of Rosalind Franklin and others, determined that the shape of the DNA molecule was
zysi [14]
Shaped like a twisted ladder
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3 years ago
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What is the role of DNA in determining an organisms traits?
Travka [436]
Everything. DNA contains genes In which in a person determines proteins how much protein is formed is based on how strong the trait is. <span>DNA also determines every genetic trait an organism has.DNA's main role is to store information.</span>
7 0
3 years ago
Using sophisticated molecular cloning techniques, you have isolated the genes for two serotonin transporters, called TransA and
kherson [118]

Answer:

Vesicles  

Explanation:

Serotonin is a neurotransmitter that transports signals or messages between neurons.

Most neuronal cells have vesicles in their interior, which are organelles that store neurotransmitters for exportation -by exocytosis- or from recycling -by endocytosis-. These vesicles also protect the neurotransmitter from the enzymatic action.

Vesicles form in the cellular soma, from where they are transported to nervous terminals. Once the vesicle releases the neurotransmitter to the intercellular space, their membrane remains available in the plasmatic membrane to be reused.

The neurotransmitter concentration in the vesicle interior is related to the storage system and the <u>transport system</u>. There are <u>specialized transporter proteins in the vesicle membrane</u> that are involved with the introduction of the molecule to the organelle.

In the exposed example, transporter Trans B might be located in the vesicle membranes, and hence could be found in the cytosol of the cells.

4 0
3 years ago
All living organisms share characteristics such as DNA, the molecule that passes information between generations; metabolic proc
Naily [24]

Answer:

Biological evolution

Explanation:

<em>Biological evolution is defined as the formation of complex organisms from single ancestral type over a large time period. Evolution believes that all living organisms descended from a common ancestor but not without modification.</em>

There are several evidence to support the theory of evolution including morphological evidence, paleontological evidence, biochemical evidence, among others.

The similarity in the structure and components of DNA of all living organisms is one of the evidence pointing to the fact that living organisms might truly have been from a common ancestor. In addition, all living organisms tend to use ATP largely as their source of energy, giving further credence to evolution theory.

4 0
3 years ago
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