BIOLOGY HIGH SCHOOL

Which of the following is an example of a disease that is properly matched with one of its environmental risk factors? High blood pressure—genetics
Arteriosclerosis—diet
Hemophilia—poor nutrition
Anemia—family history

Answers

Answer 1
Answer:

Answer: Arteriosclerosis—diet

Explanation:

The disease like is directly related to the diet that the person eats in his daily life. Some of the diseases are caused by the environmental problems such as lifestyle, diet and many more factors.

This disease is caused by the unhealthy lifestyle and food that we consume. More fatty food and no physical activity can lead to the blockage in the arteries of the heart.

The thickening of the blood causes blockage in the artery and can cause a medical condition known as arteriosclerosis.
Answer 2
Answer: The Answer is B ; Arteriosclerosis - Diet.
I just took the test.

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Why is important for scientists to remain open minded about information they come across in their experiments

Answers

It is important for scientists to remain open minded about information that they come across in their experiments, so that they do not become biased about the result. it can always happen that the results that come out are contrary to what the scientist expected. It is important to openly accept that the scientists prediction was wrong.

Which statement best describes the role of gene expression in cells?Question 1 options:

Cells destroy the DNA of genes that they do not use.

When cells divide in mitosis, they pass on only the genes that are required.


To become specialized, cells need to control the production of proteins coded for in their DNA.


All genetic information in a cell's DNA is fully expressed at all times.

Answers

The answer is To become specialized, cells need to control the production of proteins coded for in their DNA.

All genetic information in a cell's DNA is not fully expressed at all times. On the contrary, in different cell lines, different DNA segments are expressed at different times. Some genes are active in unspecialized cells and later deactivate, some are activated only in specialized cells, for example. These are facultative genes which are active when needed, unlike constitutive genes which are expressed continually. Therefore, to become specialized, cells need to control the production of proteins coded for in their DNA. DNA segments, however, remain in cell and are not destroyed. Also, during the mitosis, all genes are passed, not only required genes.

Answer:

To become specialized, cells need to control the production of proteins coded for in their DNA.

Explanation:

Label each example as either (PI) passive or (AI) active immunity:a. ________ Bill had chicken pox when he was five. He doesn’t catch it again, even when his nephew gets sick with the virus.
b. _______ Billy Jr gets vaccinated with a live attenuated form of the chicken pox virus. He doesn’t get chicken pox after playing with his infected cousin.
c. _______ Bill’s 3 month old daughter is breast feeding. She does not get chicken pox after playing with her infected cousin.

Answers

First, let's distinguish active from passive immunity:
- Active immunity occurs in a direct exposure of individuals to live pathogens. The result is a development of a disease. After that, individuals acquire immunity to the disease.
- Passive immunity is induced by vaccines with antibodies for a disease, so the disease does not develop.

a. ACTIVE IMMUNITY - Bill had a disease, so it must be active immunity.
b. PASSIVE IMMUNITY - Bill got a vaccine and a disease did not develop, so it must be passive immunity.
c. PASSIVE IMMUNITY - Although, 3-month-old daughter did not get a vaccine, she has mother's antibodies from the milk so she will not develop a disease.

Answer:

Active

Active

Passive

Why do classification systems change over time?

Answers

Classification systems change over time for a variety of reasons, but the basic gist of the matter is that as we learn more about the natural world around us, these systems change to fit in with and around the new information. Whilst it is worth learning the current system of classification, it is also important to remember that this could always change at any time.

Which statement below BEST summarizes the role of the DNA molecule in cells?a. guides cell division
b. protects cells from infection
c. provides the instructions for making proteins
d. regulates the chemical processes that provide the cell with energy

Answers

The correct answer is DNA provides the instructions for making proteins.

The replication of DNA aids in protein synthesis. The main function of DNA is to give instructions for making different proteins required by different cells of the body. They give instructions for the arrangement of the of the bases A, T, G, C in the DNA. The different arrangements of these bases results in the production of different kinds of protein. Thus, the DNA gives instructions for protein synthesis.
c. provides the instructions for making proteins

How does the speckled coat of a young deer help it to survive?

Answers

A speckled coat of a young deer helps it to survive by serving as a camouflage in avoiding predators. A fawn is born with white spots which allows them to blend with their surroundings whenever harm is near. Fawns are easy target for bigger animals so it gives them hiding advantage.
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