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Elina [12.6K]
3 years ago
8

What macromolecules should you associate with the nucleus

Biology
1 answer:
olya-2409 [2.1K]3 years ago
5 0
Nucleic acids refer to DNA and RNA. In eukaryotic cells, the majority of DNA is found in the nucleus, with a small amount of mitochondrial DNA in the mitochondria.
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Which of the following have improved farming practices and crop production? Select all that apply.
STatiana [176]

Answer:

sophisticated irrigation, chemical fertilizers, chemical pesticides

Explanation:

The use of irrigation to provide needed water and the use of natural fertilizers to promote crop growth are farming methods that have been practiced for centuries. More sophisticated irrigation techniques, various chemical pesticides, and modern chemical fertilizers have been developed in the twentieth century.

4 0
3 years ago
Which of these cancer drugs acts by adding hydrocarbon groups to dna? alkylating agents?
stich3 [128]
The propositions are:
a.alkylating agents
b.antimetabolites
c.topisomerase inhibitors
d.nucleoside analogs
e.<span>AZT

The right answer is A, 
An alkylating agent is a compound capable of adding alkyl groups to various electronegative groups under conditions present within the cells.

Antimetabolites are an anticancer drug but act differently than the alkylating agent. (interfere with folic acid)
Topoisomerase inhibitor acts by inhibiting isomerase, used in antibiotherapy (like quinolones).
Nucleoside analogs are analogs as their name says, it does not alkylate nucleotides.
AZT (</span><span>Zidovudine) is an antiretroviral drug that inhibits reverse transcriptase.</span>
3 0
3 years ago
Need rn! worth 13 ~ 謝謝
Arte-miy333 [17]
It is B I think

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5 0
3 years ago
Please help i give 48 points !!!which correctly lists the three layers in which water moves easily
Aliun [14]

soil, rock, organic layer

Explanation:

Permeability is the ability of a layer of rock to transmit fluid such as oil or water

The factors that affect the permeability of a rock layer includes the sizes of the rock particles, the ratio of the available voids to the solid mass of the rock, the presence of trapped air and the presence of organic matter

Rocks such as gravels, and  sparingly cemented sands have high permeability

The most impermeable of the options are granite and clay which for granite has large particle mass and contain no voids while clay has very fine particles packed together with little room for water

Therefore, water moves easily between layers  soil, rock, organic layer

7 0
3 years ago
Read 2 more answers
What can you conclude from the fact that more than a billion species have gone extinct during Earth's history?
MArishka [77]
A. Extinction is a natural part of life on earth
8 0
3 years ago
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