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Minchanka [31]
3 years ago
14

What cellular structures do eukaryotic cells contain, but prokaryotic cells lack?

Biology
1 answer:
34kurt3 years ago
8 0

Answer:

There's no nucleus

Explanation:

all genetic material is freely in the cytoplasm since there is no fixed shaped or structured nucleus.

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How are the oceans important to are planets climate
zhenek [66]

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we need the animals and shark in the food change

Explanation:

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3 years ago
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The exchange of carbon dioxide and oxygen in the alveoli of the lungs is an example of what?
nignag [31]

Answer:

The correct answer is C) Passive transport

Explanation:

During the respiration process exchange of gases takes place between lungs and blood. This gas exchange is carried by simple diffusion which is a passive transport. Here gas molecule moves from area of higher concentration to the lower concentration area.

The lung's alveoli are surrounded by blood capillaries in which the concentration of CO2 is high while in alveoli concentration or partial pressure of CO2 is low so CO2 moves from blood to alveoli through diffusion.

In the case of oxygen, the concentration of oxygen is high in alveoli and less in blood inside blood capillaries so oxygen moves from alveoli to blood by diffusion. So the right answer is C.

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3 years ago
What is one difference between the evolution of stickleback fish and superbugs?
weeeeeb [17]

Answer:

one is a fish and the other is a bug

Explanation:

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Organic compounds are commonly called
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lipid=organic compounds commonly called fats and oils; are insoluble in water and used by cells for long-term energy storage, insulation, and protective coatings, such as in membranes

6 0
4 years ago
Which of the following options best depicts the flow of information when a gene directs the synthesis
valentina_108 [34]

The flow of <u>DNA → mRNA → protein </u>depicts the flow of information when a gene directs the synthesis of a cellular component.

Explanation:

Genetic information needs to flow in a specific pattern in order a gene to transform into a component like protein. This transformation takes place through the processes of transcription inside the nucleus and translation in the ribosomes. So the pathway: DNA → mRNA → protein will be correct flow of information for protein synthesis from DNA code. The mRNA or the messenger RNA encodes the genetic information or the chemical blueprint of the particular protein to be synthesized. This flow represents the central dogma of genetic information pathway or flow, which is; DNA encodes the RNA and the RNA encodes the Protein

6 0
3 years ago
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