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yarga [219]
3 years ago
11

Plz help me well mark brainliest if you are correct!!

Biology
1 answer:
bulgar [2K]3 years ago
5 0

Answer:

All of these are natural resources.

Explanation:

Because they are not manufactured.

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The scientists who are researching the effectiveness of the HPV vaccine will test their hypothesis by separating 2,392 young wom
Delicious77 [7]

Answer:

C

Explanation:

<em>The correct answer would be the group that was given a placebo.</em>

A control group in an experimental study is the group that is subjected to all other conditions except the variable whose effects are being determined during the course of the experiment.

<u>Since the main goal of the research is to evaluate the effectiveness of the HPV vaccine, the difference between the experimental and the control group would be the vaccine.</u> Instead, the control group would be given a placebo - a substance that is designed not to have any effect but looks like the vaccine itself.

<em>Correct option: </em><em>C</em>

6 0
2 years ago
which if the following is responsible for adding nitrogenous bases to the DNA template during replication?
mel-nik [20]

Answer/Explanation: One of the key molecules in DNA replication is the enzyme DNA polymerase. DNA polymerases are responsible for synthesizing DNA: they add nucleotides one by one to the growing DNA chain, incorporating only those that are complementary to the template. (Brainllest please)

8 0
3 years ago
During replication, the function of the enzyme DNA polymerase is to
Ivenika [448]

Answer:

b. locate replication sites.

Explanation:

During replication, the function of the enzyme DNA polymerase is to locate replication sites.

6 0
3 years ago
You are given a 1 liter bacterial culture in exponential stage of growth. The generation time of the bacteria is known to be 30
nydimaria [60]

Answer:

Option-A

Explanation:

A bacteria divides by binary fission which divides a parent bacteria into the two daughter cells and generation time refers to the average time difference between two consecutive generations.

The bacterial cell grows by the exponential function that is by 2^{number of generation} x initial population of bacteria.

In the given question,

<u>Initial population</u>

the initial population of bacteria - 2x 10³ per ml

So per liter, the bacterial population will be 2 x 10 ⁶

<u>Generation time</u>

1 generation time of bacteria is 30 min.

so 5 hours will have- <u> </u>\frac{300}{30}= 10 generations

<u>New bacterial population</u>

Using formula<u>  </u>2^{number of generation} x initial population of bacteria

2^{10} x (2 x 10⁶)

= 1048 x (2 x 10⁶)

2048 x 10⁶

Thus, Option-A is the correct answer.

4 0
2 years ago
Which macromolecule provides the energy that starts glycolysis?
Kruka [31]

Answer:

It starts with sugar, or C6H12O6 being broken down.

Explanation:

Also, as seeing that it is the only macromolecule here and because of the fact that glycolysis uses glucose, or sugar, your answer is B, sugar.

6 0
3 years ago
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