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AnnyKZ [126]
1 year ago
6

what is the study of the harmful effects of chemicals on humans and other organisms? group of answer choices multiple chemical s

ensitivity (mcs) biological accumulation epidemiology toxicology toxicity
Biology
1 answer:
Rufina [12.5K]1 year ago
7 0

Toxicology is the study of how chemicals can affect both people and other living things.

<h3>What is the importance of toxicology?</h3>

The scientific study of harmful effects caused by chemicals on living things is known as toxicology. It entails keeping track of and documenting symptoms that appear after exposure to harmful chemicals. Typically, toxicity only occurs when a chemical that may be harmful reaches sensitive tissues, such the reproductive organs, in excess of a predetermined amount.

  • The processes by which these compounds cause toxicity will be investigated by toxicologists, as well as the methods for identifying these substances in diverse sample types.
  • A further aspect of toxicology is determining the best ways to handle people or animals that have been exposed to specific poisons.
  • Environmental toxins, naturally occurring chemicals, pharmaceutical compounds created for human use in medicine, and other substances are all evaluated by toxicologists.

Know more about toxicology at:

brainly.com/question/19667127

#SPJ4

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Humans extract ground water ,a natural resource from underneath the land. Which is a way that humans depend on ground water. Sel
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A,B, C and D are correct
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In a certain mutant strain of bacteria, the enzyme leucyl-tRNA synthetase mistakenly attaches isoleucine to leucyl-tRNA 10% of t
Effectus [21]

Answer:

The correct answer is "proteins in which isoleucine is inserted at some positions normally occupied by leucine".

Explanation:

The missing options of this question are:

A. proteins in which leucine is inserted at some positions normally occupied by isoleucine.

B. proteins in which isoleucine is inserted at some positions normally occupied by leucine.

C. no abnormal proteins, because the ribosomal translation machinery will recognize the inappropriately activated tRNAs and exclude them from the translation process.

D. no proteins, because the inappropriately activated tRNAs will block translation

The correct answer is option B. "proteins in which isoleucine is inserted at some positions normally occupied by leucine".

In normal conditions, the enzyme leucyl-tRNA synthetase attaches one leucine amino acid to leucyl-tRNA as part of synthesis of proteins that have one or more leucine residues in their sequences. Since the enzyme of this mutant strain of bacteria mistakenly attaches isoleucine to leucyl-tRNA 10% of the time, approximately 10% of all the proteins that normally have leucine residues will going to have isoleucine. Therefore, These bacteria will synthesize proteins in which isoleucine is inserted at some positions normally occupied by leucine.

3 0
3 years ago
Cells that are rapidly undergoing mitosis constantly repair and renew the lining of the pharynx and the esophagus, which is part
SIZIF [17.4K]

Answer:

mucosa

Explanation:

The pharynx and esophagus possesss all of the basic histological layers of the gastrtointestinal tract (GI tract). The layers are:

  1. mucosa - layer closer to lumen which cocnsists of epithelium, lamina propria and muscularis mucosae
  2. submucosa-layer of loose connective tissue with vessels
  3. muscularis propria-layer of inner circular and outer longitudinal muscular layers
  4. adventia - layer of  loose connective tissue
4 0
3 years ago
What is the difference between a hypothesis and a theory? A hypothesis is a testable statement, and a theory is well-supported e
Kobotan [32]

Answer:

In scientific reasoning, a hypothesis is an assumption made before any research has been completed for the sake of testing. ... A theory on the other hand is a principle set to explain phenomena already supported by data.

Explanation:

5 0
3 years ago
Please help!<br> the question(s) are in the pdf :)
Yuliya22 [10]

Answer:

1) b) hypotonic

2) a) hypertonic

3) a) water

4) a) B to A

5) c) osmosis

Explanation:

We have two compartments with water (A) and a solution in which the solvent is water and the solute is starch (B). The solutions are separated by a semipermeable membrane, which means that only the water molecules pass through the membrane.

1) In comparison with B, compartment A has a lesser amount of solute so it is hypotonic.

2) In comparison with A, compartment B has more solute (starch) so it is hypertonic.

3) The solvent is water, which dissolves the solute (starch).

4) Only the water molecules will pass through the membrane, and the molecules always move from the compartment with a higher concentration of solute (B) to the compartment with a lesser concentration of solute (A). So, the water moves from B to A.

5) The process in which the molecules of solvent move from a more concentrated solution to a less concentrated solution through a semi-permeable membrane is called osmosis.

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2 years ago
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