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boyakko [2]
3 years ago
8

Question 57

Biology
1 answer:
saveliy_v [14]3 years ago
6 0
Both fight over infection and work on the rebuild of body tissue
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How is wind energy different from energy from fossil feels?
amm1812

first of all, wind energy is a renewable source of energy and fossil fuels is a non renewable

the method of obtaining them is also different i.e , wind energy can be obtained when wind turns turbines , and fossil fuels are burned to give energy...

3 0
3 years ago
Which of the following mutations could lead to constitutive expression of the genes of the lac operon? View Available Hint(s) Wh
Molodets [167]

Options for part A are as follows:

A) A mutation in the operator sequence

B) A mutation in the lac-Z gene

C) A mutation in the lac-Y gene

D) A super repressor mutation

Answer:

The correct answer:

Part a - A mutation in the operator sequence

Part b - It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part C. true.

Explanation:

part a:

If there is a mutation in the operator sequence leads to prevent binding of the repressor which leads to allowing constitutive expression of the genes various conditions.

part b:

The biological role of the lac operon makes sure that the cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part c:

RNA polymerase cannot transcribe the structural genes due to the repressor binds to the lac operator, therefore, the proper function of the lac operon is possible when the placement of the operator sequence between the promotor and the structural genes.

4 0
3 years ago
What effect might obesity have on blood pressure? Does obesity alone cause a person to be at risk for high blood pressure? What
Ugo [173]

Answer:

obesity increases blood pressure

Explanation:

This is because the high fat percentage in the body has lead to a build up of fat on the inside of arteries and this makes them thinner. the heart has to pump harder to get the blood around the body and through these, now smaller arteries. therefore yes having diabetes does increase blood pressure.

other factors which increase blood pressure are high stress levels, smoking, anxiety.

6 0
2 years ago
What is the acceleration of a marble in that has a mass of 90kg and a force applied of 60N
miskamm [114]

Answer:

0.6... or 3/5

Explanation:

To find the acceleration, we need to use the acceleration formula:

  • a=F/m

So all we have to do now is plug in the numbers:

  • a = 60/90

Once we divide 60 by 90, we will get the acceleration of the marble.

  • 60/90 = 0.6... (repeating)

Our final answer should be:

0.6... or 3/5

7 0
3 years ago
Doctors finally understood why a child had difficulty sleeping. They discovered that she had a large tumor located in the part o
Fynjy0 [20]

Answer:

The correct answer is - Pons.

Explanation:

The pons is located t below the midbrain and below the midbrain. It is a group of nerves that function as a connection between the cerebrum and cerebellum.

It is related to the various functions of the body such as sleeping, respiration, swallowing, bladder control, hearing, and many more. These functions

4 0
3 years ago
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