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QveST [7]
3 years ago
10

Explain why oxygen and carbon dioxide diffuse in opposite directions in the lungs?

Biology
1 answer:
Vilka [71]3 years ago
8 0

Answer:

There is a higher oxygen content in the air of the lungs than that of oxygen-depleted blood and a lower carbon dioxide concentration. This gradient of concentration causes gas exchange during respiration.

Explanation:

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The answer is A. Invented SCUBA

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  • Emile Gagnan and Jacques Cousteau were engineers who invented the first SCUBA device, the Aqua-Lung.
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2 years ago
3. How might a nitrogen-oxygen atmosphere on the moon affect the range of temperatures on the 1
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humans developed antibiotics to fight bacterial infections however some antibiotics are no longer effective in killing the bacte
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Changes in genetic makeup occurs with the passage of time.

Explanation:

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2 years ago
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Read 2 more answers
Which phrase describes a gene in its simplest form?
vovangra [49]

Answer:

Option-D, a segment of DNA

Explanation:

A gene represents the particular segment of DNA which contains the instruction for the trait of an organism. The nucleotide sequence present in the segment provides the instruction in the form of codons.

The gene is present in the form of its alternative form called alleles which are located on the chromosomes at locus. The alleles represent the variants of the gene and therefore controls the two variety of a single trait.

Thus, Option-D is correct.

7 0
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