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Oksi-84 [34.3K]
4 years ago
10

Based on the Plasmodium life cycle shown in Figure 21–4, what would happen if the mosquitoes disappeared?

Biology
1 answer:
spayn [35]4 years ago
8 0
The answer is <span>D. The Plasmodium life cycle would be interrupted, and the infection could not be passed on.

Mosquitoes are necessary for malaria infection. According to the lyfe cycle, after infected mosquitoes bite a human, they inject saliva with sporozoites into the human circulatory system (stage A). The sporozoites enter human liver where they divide and schizonts are created. Schizonts give birth to merozoites (stage B). Merozoites are released into the bloodstream where invade red blood cells (stage C). Inside the red blood cells, they evolve into trophozoites, they into erythrocytic schizonts, and finally into a new generation of merozoites (stage D). After the red blood cells rupture, they are released into the blood stream (stage E). Therefore, if mosquitoes disappear, the first stage (stage A) will be missing, so the plasmodium life cycle will be interrupted.</span>
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A yeast is cultured in the presence of radioactive phosphate and the following biological molecules are purified. Which molecule
tatiyna

Answer:

The most radioactive purified biological molecule will be RNA

Explanation:

RNA (ribonucleic acid) like DNA, is a long, unbranched macromolecule consisting of nucleotides joined by 3' - 5' phosphodiester bond.

In the cultured yeast, RNA is the most radioactive purified biological molecule because RNA is normally single stranded and does not undergo mutation, replication nor transcription.

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3 0
4 years ago
Identify the products and reactants in a chemical equation. Identify the different types of chemical reactions.
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Explanation:

The products in a reaction are the species on the right hand side of a chemical equation.

The reactants are the species on the left hand side of the equation.

  A  + B ⇒  C+ D

The reactants A and B, products are C and D.

Reactants are the species combining together.

The products are the results of the combination.

Types of chemical reactions;

Combination or synthesis; in this type of reaction, two species combines to give a product or products:

      A  + B ⇒  C+ D

Decomposition or cracking: a specie breaks down into one or more products:

    A ⇒ B + C

Single displacement: one specie replaces another in a reaction:

  A + CD ⇒  AC + D

Double displacement: species replaces another in a reaction:

 AC + BD ⇒  AD + BC

learn more:

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Pretty much a sore throat

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Best answer would be B.
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