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Cloud [144]
3 years ago
11

What is the sac that must surround something before it can be actively transported across a membrane? A. Centrosome B. Chloropla

st C. Ribosome D. Vesicle
Biology
2 answers:
Nata [24]3 years ago
5 0
Pretty sure it's D.
jonny [76]3 years ago
3 0
A membranous sac that surrounds something before it is actively transported across a membrane is called a Vesicle. 

The solution is D.
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A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals tha
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Answer: the correct answer is (B) Whether others of the closely related group of plants also produce histidine in large quantities

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This is a CAUSAL argument.

In a causal argument, A and B are observed together, and the CR concludes that A CAUSES B.

Premise = A and B are observed together:

A cultivated herb produces histidine and is able to grow in metal rich soils.

Conclusion = A causes B:

Histidine CAUSES the herb to be able to grow in metal rich soils.

One way to strengthen the conclusion that A causes B is give ANOTHER SUPPORTING EXAMPLE that links A to B.

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3 years ago
Koalas are marsupials that are found in eastern Australia. Although their ancestors lived mostly on the ground, modern koalas sp
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The answer is fur color that closely matches the eucalyptus bark color
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What amino acids do trypsin and chymotrypsin cut at?
Vikentia [17]

Answer:

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Trypsin cuts at lysine and arginine amino acid residues at the carboxyl end. Chymotrypsin cuts at tryosine , phenylalanine, and tryptophan amino acid residues at the carboxyl end.

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