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Butoxors [25]
3 years ago
6

Annelids have a(an) ____ circulatory system, in which blood is contained in a network of blood vessels.

Biology
1 answer:
qwelly [4]3 years ago
3 0
Annelids have closed circulatory system
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How does cystic fibrosis affect meiosis?
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Answer:

The defective CFTR protein changes ion influx and efflux across the body's cell membranes, which ultimately changes the internal environment of these cells. This change contributes to each cell's production of proteins through transcription and translation.

Explanation:

The defective CFTR protein changes ion influx and efflux across the body's cell membranes, which ultimately changes the internal environment of these cells. This change contributes to each cell's production of proteins through transcription and translation.

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3 years ago
You decide to repeat the Meselson-Stahl experiment, except this time you plan to grow the cells on light 14N medium for many gen
Effectus [21]

Answer:

One band of light density and one band of heavy density.

Explanation:

According to conservative model of replication, the original strands do not separate from each other during replication. Hence, after replication the old strands are together and the new strands are together.

Here, cells were grown in 14N medium first so 14N was used for DNA replication and all DNA molecules had 14N. When the cells were transferred to 15N medium, only 15N was available for replication process. New DNA molecules would be synthesised using 15N (15N15N) and old DNA molecules have 14N (14N14N). Hence, in density gradient one band will be of light density (14N14N) and one band will be of heavy density (15N15N).

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What type of trait shows a blending of two traits? For example, a rabbit
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Answer:B

Explanation:

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What organs make up the central nervous system
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