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Komok [63]
3 years ago
12

What are 4 catalogs of organic molecules which form the base of living things?

Biology
1 answer:
katen-ka-za [31]3 years ago
8 0
They are Nucleic Acids, Proteins, Carbohydrates, and Lipids
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2. A man with type B blood mamies a woman with type A blood. Their first child has type o blood. The couple says this is
Arisa [49]

Blood types:

AB +

AB -

A +

A -

B +

B -

O +

O -

It is possible to have a child with O blood despite the parents having different blood types.

While the man tested for B blood, he could have been a combination between type o and B whereas, the woman was a combination of type A and o. Since A/B are dominant, they would 'stand out' contrarily to o.

This means that their children could have AB or O blood.

6 0
3 years ago
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Which statement best describes the human immunodeficiency virus (HIV) that has been shown to cause AIDS in humans?
snow_lady [41]
Immune dysfunction in HIV<span> disease is </span>caused<span> predominantly by damage to a patient with </span>human immunodeficiency virus<span> </span>
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3 years ago
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The prevention of expression of operons encoding substrate use pathways for substrates other than glucose when glucose is presen
adell [148]

Answer:

The answer is : Carbon catabolite repression

Explanation:

Carbon catabolite repression is a vital part of the global control system of the bacteria and other microorganisms. It allows the microorganisms to quickly adapt to the preferred energy and carbon source first. This is generally achieved by the inhibiting the synthesis of the enzymes that are involved in the catabolism of other carbon sources.

This effect was first shown to be initiated by glucose. Therefore, the carbon catabolite repression is also known as glucose effect.            

8 0
3 years ago
Which stable element is used to determine the age of volcanic rock? argon O carbon-14 O O potassium carbon-12 Which stable eleme
Verdich [7]

Answer:

Argon

Explanation:

Argon is actually used to determine the age. It's called potassium-argon dating b/c when volcano erupts the rocks in it contain potassium. The potassium slowly decays and produces argon. Scientists measure how much argon is in a given volcanic rock and do math backwards to figure out how many potassium atoms were needed to produce the given amount of argon. We already know the rate at which potassium decays so then they put two and two together to find the age.

Here's a link with some cool info on it:

https://divediscover.whoi.edu/archives/hottopics/volcano.html

3 0
2 years ago
Which of these plant parts become the seeds?
umka21 [38]

Answer:

C. Ovules

Explanation:

correct me if I'm wrong

4 0
2 years ago
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