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docker41 [41]
3 years ago
15

Which describes gas exchange in the respiratory system?

Biology
2 answers:
kvv77 [185]3 years ago
7 0

Answer:

A

Explanation:

kolbaska11 [484]3 years ago
6 0

Answer:

A.

Explanation:

A. Gas exchange happens through diffusion.

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When discussing natural selection, the term "fitness" is best thought of as __________.
frutty [35]
A I’d go with if I’m wrong I’m sorry
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3 years ago
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Why is primary production and animal life concentrated at the surface in pelagic regions of the open-ocean?
konstantin123 [22]
Photosynthesising primary producers require sunlight. Therefore, in the ocean, phytoplankton would be concentrated within the surface layers of the ocean where the sunlight penetrates. Phytoplankton support a wide range of marine life: zooplankton feed on phytoplankton, which in turn support fish and so on. 
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4 years ago
Multiple Choice Question:
Citrus2011 [14]

Answer:

A, metabolized

Explanation:

^^ Hopefully this helps!

5 0
3 years ago
Write the sequence of the mRNA molecule synthesized from a DNA template strand having the sequence 5’-ATCGTACCGTTA-3’. (b) What
vlabodo [156]

Answer:

The mRNA molecule will be synthesized running in the 5' to 3' direction.

Explanation:

From the DNA sequence:

5'-ATCGTACCGTTA-3'

3'-TAGCATGGCAAT-5'

mRNA sequence is

5'-AUCGUACCGUUA-3'

Amino acid sequence will thus be:

Ileu-val-pro-leu.

8 0
3 years ago
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An American cockroach (Periplaneta americana) can begin to turn away from approaching danger, such as a hungry toad lunging towa
JulsSmile [24]

Answer:

The roaches antennas

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the roaches antennas sense movement from far so the antennas sense when the roach is in danger their for it moves away not towards it.

8 0
3 years ago
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