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Drupady [299]
2 years ago
13

2. Oxygen is carried in the blood by the:

Biology
1 answer:
kkurt [141]2 years ago
8 0

Answer:haemoglobin

Explanation:

Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.

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3 years ago
what would you if cell membrane became impermeable instead of selectively permeable could cell remain alive
natali 33 [55]
If a cell membrane became impermeable, instead of selectively permeable, the cell would not remain alive, though certain organisms would be able to stay alive longer than others. This is because the cell membrane allows essential molecules and substances such as oxygen into the cell, while allowing harmful substances, like waste, out of the cell.

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4 0
3 years ago
How can the random distribution of alleles result in a predictable ratio?
levacccp [35]
Phenotypically and genotypically there are only two different ratios. If you think of a Punett square... 

<span>You could say that a pea plant with the trait for the dominant color green (G) could also carry the recessive trait for yellow (g). So let's say you mate a dominant green, (Gg) with another dominant green, (Gg). You would get 1 (GG), 2 (Gg) and 2 (gg). </span>

<span>Phenotypically (as in physical traitwise), the ratio is 3:1 because you have 3 green colored peas and one yellow. </span>

<span>Genotypically (as in traitwise), the ratio is 1:2:1, because you have 1 (GG), 2 (Gg) and 1 (gg). </span>

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4 0
3 years ago
Myxococcus xanthus shuts off DNA replication upon starvation, but cells can finish any DNA replication already in progress. Thos
Lelechka [254]

Answer:

<em>DnaA transcription is shut off upon starvation </em>

Explanation:

5 0
3 years ago
Which organelle would be more developed in a cell of salivary glands?
Zina [86]

Answer:

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Explanation:

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8 0
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