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ddd [48]
4 years ago
13

How an electron microscope magnifies an image?

Biology
1 answer:
emmasim [6.3K]4 years ago
3 0
An electron microscope scans a beam of electrons over a specimen to create a magnified image.
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A female patient who is diabetic sustained an ST-elevation myocardial infarction (STEMI). The nurse provides discharge teaching.
Aneli [31]

Answer:

The options

A) "Medications are needed to prevent heart failure."

B) "I will take aspirin, atenolol, and captopril indefinitely."

C) "My blood pressure should be less than 130/80 mm Hg."

D) "Daily estrogen will prevent another heart attack."

The CORRECT ANSWER IS D)

D) "Daily estrogen will prevent another heart attack."

Explanation:

A reduction in the natural hormone estrogen levels could be a causative factor in heart disease increase within post-menopausal women. Estrogen is thought to show a positive impact on the inner layer of artery wall, functioning in such a way to keep blood vessels elastic.

In spite of the advantages of estrogen, the American Heart Association speaks against employing postmenopausal hormone therapy to decrease the likelihood of coronary heart disease or stroke as some research works have revealed that it vividly do not decrase the risk of heart attack but increases the likelihood of blood clots and stroke.

4 0
3 years ago
Which mechanism of genetic variation results from the exchange of gene segments between non-sister chromatids? Select one of the
Marysya12 [62]
A) Crossing over is the mechanism of genetic variation that results from the exchange of gene segments between non-sister chomatids.
6 0
4 years ago
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Can you list some facts about Food webs.
Novosadov [1.4K]

Answer:

A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass.

Explanation: A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem.

7 0
3 years ago
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CAN SOMEONE PLEASE HELP!!!!!!!!!!
kkurt [141]

Answer:

A series if reaction break and rrarrange csrbon bonds to release energy ang carbon dioxide.

6 0
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What property of dna causes it to migrate tot he positive pole of the electrophoresis apparatus?
Contact [7]
The property of DNA which causes it to migrate to the positive pole of the electrophoresis apparatus is B. the negative charge of the DNA.
It acts just like a magnet - positive and negative forces attract.
4 0
4 years ago
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