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scZoUnD [109]
3 years ago
5

Why is the blood that flows from the lungs toward the heart a brighter red than the blood that flows the other direction?

Biology
2 answers:
tatiyna3 years ago
3 0
There is more oxygen near the lungs, because fresh oxygen goes into the lungs.
zlopas [31]3 years ago
3 0
B. the presence of oxygen-bound hemoglobin makes it bright red
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The envelope come from the host cell membrane as the virus leaves the host cell

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A virus is an organism that is incapable of replicating on its own without infecting a living host. A virus consists of a genetic material (DNA or RNA) , a protein coat called CAPSID, and sometimes some viruses possess an envelope, which is an outer covering or enclosure. Viruses that possess this envelope are referred to as ENVELOPED VIRUS.

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(hi, i dont know about this one personally, but i found an answer somewhere else on the internet thatll hopefully help u)

Answer: They consist of long chains of C, H, and O.

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