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balandron [24]
3 years ago
15

How many factors should a well-designed experiment test at one time?

Biology
1 answer:
LuckyWell [14K]3 years ago
3 0
Only 1- the experiment can not show a cause and effect relationship if there are more than one factors contributing to the outcome.
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Antibodies are made when animals detect a foreign antigen. All mammals carry albumin in their blood. How was a rabbit antibody a
belka [17]
<h2>Rabbit Blood</h2>

Explanation:

  • <em>Blood is the primary transporter</em> mode for the transport of components essential for digestion all through the body
  • Red platelets are one of the most significant components of blood
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When pure black hamsters were mated with pure white hamsters, all of the offspring were black. The trait for white coloration wo
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Answer:

A. Recessive

Explanation:

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3 years ago
Diagnose: Mrs. Harris is a 60 year old white woman. She has noticed in recent years that her height has slightly decreased. Rece
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<u>Answer:</u>

Q: Which skeletal system <u>disorder</u> might she be suffering from?

A: <u>Osteoporosis</u>

Q: What <u>techniques</u> could be used to diagnose her condition?

A: <u>Bone mineral density (BMD) test</u> or <u>dual energy X-ray absorptiometry (DXA) scan</u>

Q: What treatments are available?

A: Medication, healthy food.

<u>Explanation:</u>

<u>The vertebral discs between vertebrae could shrink with age</u>. Therefore, a height loss up to 1-inch is normal. However, if the height loss is more then it is possibly due to <u>osteoporosis</u>.

A <u>bone mineral density test</u>, also known as <u>dual energy X-ray absorptiometry</u> scan, is a well-adapted test to measure the amount of calcium and other minerals in the bones. It uses <u>X-rays</u> to measure the content of calcium and thus strength of bones.

A person who is already suffering from osteoporosis should be treated with <u>medicine</u> right away so that it <u>stops</u> further <u>deterioration of the bones</u> and <u>avoid any future bone fractures</u>. Further, it can be handled by <u>eating a healthy diet</u> and <u>supplements</u> such as <u>vitamins D</u>. In case some of the bones/vertebrae are <u>already fractured</u>, <u>surgical approaches</u> might be necessary.

8 0
3 years ago
Diane Dodd, of Yale University, divided a fruit-fly population, raising some populations on a starch medium and others on a malt
Mkey [24]

Answer:D)

Explanation: Just took the USATestprep

8 0
3 years ago
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Characteristics of Thllophyta​
zysi [14]

Answer:

Characteristics of Thallophyta

They are usually found in moist or wet places.

This is due to the absence of “true roots” and vascular tissue that is needed to transport water and minerals. ...

They are autotrophic in nature.

Most members of this group manufacture their own food. ...

Reserve food is generally starch.

Explanation:

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