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mr_godi [17]
3 years ago
8

Help me please hurry

Biology
1 answer:
sdas [7]3 years ago
3 0
The answer is copper.
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The Precambrian consists of the three earliest eons of geologic time.
fgiga [73]
I believe true because the Precambrian is the first geologic time, going back 4600-570 years ago, meaning it should contain the earliest of things.
5 0
3 years ago
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What can you assume about the amount of glucose (sugar) that is produced as you move the light closer? Would it go up or down?
OverLord2011 [107]

Answer:

I think the answer will be "up"

Explanation:

3 0
3 years ago
Which of the following does NOT characterize proteins?
8090 [49]

Answer:

The answer is C) They appear to be the molecular carriers of coded hereditary information.

Explanation:

Why NOT C) They appear to be the molecular carriers of coded hereditary information?

This is the job of the nucleic acids. It is composed of nucleotides which are the basic units of DNA and RNA. They carry genetic information about a certain organism.

<h3 /><h3>True of proteins:</h3>

A) They may be denatured or coagulated by heat or acidity.

<u>Denaturation</u> is the <u>destruction of the protein's secondary and/or tertiary structures</u>. The <u>primary structure is not disrupted due to the tough peptide bonds</u> and can only be broken down by acid. For heat denaturation, hydrogen bonds are destroyed, as in cooking of egg whites and medical equipment sterilization.

B) They have both functional and structural roles in the body.

There are many kinds of proteins that have functional and structural roles like hormones <u>(FSH, LH)</u>, antibodies <u>(IgA, IgM),</u> enzymes <u>(lipase, amylase),</u> for storage/transport <u>(hemoglobin, ferritin)</u>, and locomotion <u>(actin, troponin).</u>

D) Their function depends on their three-dimensional shape.

Just like <u>hemoglobin</u>, it's <u>quaternary structure</u> can carry <u>4 molecules of iron</u> in one go. <u>Enzymes</u> are shaped accordingly to fit a<u> specific substrate</u> <em>(lock-and-key model)</em>

6 0
3 years ago
What time of the year is bacterial and fungal activity at a high ?
bekas [8.4K]

Around Autumn as the temp and pH of soils are vlose the the optimum

8 0
3 years ago
Which of the following are benefits of genetic engineering? 1)new vaccines 2)creation of toxic waste 3)sterile offspring 4)cance
Sauron [17]

1) New Vaccines

4) Cancer drugs

5) Seedless grapes

...They all are the advantage of Genetic Engineering.

7 0
3 years ago
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