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Evgen [1.6K]
3 years ago
7

When you walk across a carpet, you become negatively charged. Why do you receive a shock when you touch a metal door handle?

Biology
1 answer:
kotykmax [81]3 years ago
4 0

because the door is metal and metal conducts electricity well

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Hunt and her team designed an experiment to test her hypothesis about the effect of BPA on mice. They administered daily doses o
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Answer and Explanation: The figure below shows the doses of BPA administered to the female mice over time.

An experiment is used to determine cause and effect among variables. When the research is for the impact of a treatment, researchers randomly separate individuals in two groups:

  • <em><u>Control</u></em> <em><u>Group</u></em> doesn't receive any treament or a placebo or a treatment whose outcome is already known;
  • <em><u>Treatment</u></em> <em><u>Group</u></em> receives the treatment;

For the female mice on the image below, in the First Group is not injected any dosage of BPA, so they are the control group, while the <u>others</u> are <u>treatment group</u>.

The variables in a experiment are classified as independents or dependents:

  • <em><u>Independent</u></em> <em><u>Variable</u></em> is the cause;
  • <em><u>Dependent</u></em> <em><u>Variable</u></em> is the effect;

For the BPA research, since it is the effect of BPA over time on the mice's cells it is being investigated, <u>dosage</u> of BPA is the <u>independent</u> variable and <em>time</em> is the <em>dependent</em> variable.

6 0
3 years ago
ATP is produced during the process of cellular respiration. Which is the order of the steps of cellular respiration....A.Krebs c
erica [24]
<span>The answer is C.glycolysis ® Krebs cycle ® electron transport chain. There are 3 stages of cellular respiration: 1. glycolysis when glucose is broken down to pyruvate in the cytoplasm; 2. Krebs cycle when Acetyl CoA and oxaloacetate form a 6 C-atoms compound; 3. Electron transport chain when hydrogen molecules removed through previous stages are pumped to the chain and energy is produced.</span>
8 0
3 years ago
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Explain what maria and craters are and how they formed. best answer will be marked as brainlest plz help.
Katen [24]
Lunar maria (plural form of the Latin word mare, which means sea) are dark surfaces that can be found all over the moon (17% of the Moon is covered in them) that have been created as a result of volcanic eruptions. These areas are made up of basalt, and given that they seemed almost waterlike, the astronomers in the distant past mistook them for seas, whence their name comes.
When it comes to craters, their origin is quite similar - volcanic eruptions created them. When lava starts erupting from a volcano, it has to get out from somewhere - and thus craters are created. If you are referring to lunar craters, however, there are many speculations as to how they were created: due to volcanic eruptions, meteoric impact, or glacier activity.
7 0
3 years ago
On average, bone marrow accounts for about 4 percent of a person’s total body mass. If your patient weighs 200 pounds (90.7 kilo
NeTakaya

Answer:

Many people with blood cancers, such as leukemia and lymphoma, sickle cell anemia, and other life-threatening diseases, rely on bone marrow or cord blood transplants to survive.

Healthy bone marrow and blood cells are needed in order to live. When disease affects bone marrow so that it can no longer function effectively, a marrow or cord blood transplant could be the best treatment option; for some patients it is the only potential cure.

Explanation:

7 0
2 years ago
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What is a point of view?​
nika2105 [10]

Answer:

point of view is a particular attitude or way of considering a matter.

Explanation:

pls mark brainliest

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