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Arisa [49]
3 years ago
14

Can a catalyst be used over and over again?

Biology
1 answer:
Diano4ka-milaya [45]3 years ago
4 0
Yes they can because the catalyst does not take part in the chemical reaction and remains unchanged after the reaction has ended.  Biological catalysts are known to be recycled by the bodies in which they work.
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If the root word "derm" means "skin," which of these words means "the study of skin diseases and treatment"?
Ray Of Light [21]
Answer: Dermatology

Like you said, derma means skin and  having the terminology -logy <span>indicates </span><span>names of scientific fields of study. Basically, dermatology is the branch of medicine that studies skin but also studies </span>scalp, hair, and nails (because they are all associated).

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8 0
3 years ago
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Just like a cell a virus is able to
Leno4ka [110]
Grow, spread, and get bigger.
6 0
3 years ago
Which of the following accurately describes the function of motor neurons? A. Carry automatic nerve signals to organs like the h
Aleks [24]

<u>Answer:</u>

The correct answer option is D. Carry nerve impulses from the brain to skin, glands, and muscles

<u>Explanation:</u>

Motor neurons carry signals out of the Central Nervous System (CNS).

These motor neurons have long extensions called axons which spread from the CNS to the muscles that connect with the innervate.

The information from the brain to the muscles and other glands is sent in the form of electrical impulses via the spinal cord.

3 0
3 years ago
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Should you see signs of microbial growth in a sterile medium if you allow it to incubate for several days
frozen [14]

No, even after several days of incubation, you shouldn't detect any symptoms of microbial growth in a sterile medium.

<h3>What is the microbial growth in the sterile medium?</h3>

The deliberate introduction of germs into a sterile growing medium is known as immunization. When there are no living creatures present, a substance is sterile; undesirable bacteria are said to be contaminated. The use of aseptic procedures helps keep growing media from being contaminated. Reduce the amount of time that cultures and growth media are exposed to the outside world. Clean the work area both before and after each use. Avoid breathing or touching the stock cultures or sterile culture media. Before used, loops, needles, pipes, and other items should be sanitized. The tube caps should be held in your hand while inoculating and not placed on the table while using tubes.

Learn more about microbial growth here:

brainly.com/question/14732566

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5 0
2 years ago
Where does almost all the energy that drives life on the earth originate
zlopas [31]
The sun with out it nothing would exist it would just be a cold solid rock floating through space.
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3 years ago
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