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dedylja [7]
3 years ago
10

What is a type of fibrous protein that makes up the majority of the cortex of a hair?

Biology
1 answer:
kykrilka [37]3 years ago
3 0
Keratin is a fibrous protein, that makes up a large component of the hair and nails. It is a hardened protein, with some flexibility, that is used by epithelial cells to protect the cells from damage and stress, when the hair or nail is still in the roots. It is found in high amount, in vegetables and fruits that are orange in color (carrots in particular)
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Botulism is caused by ingestion of a proteinaceous exotoxin; therefore, it can easily be prevented by
hammer [34]

Botulism can easily be prevented by boiling food prior to consumption.

<h3>What is Botulism?</h3>

Botulism may be defined as an imperative food poisoning that is provoked by botulinum toxin delivered in food by a bacterial species clostridium botulinum.

Clostridium botulinum inhibits the release of acetylcholine in the neuromuscular junction and causes defects in sensory perception through the central nervous system.

It can only be prevented by taking the proper boiled food prior to consumption.

The complete question is as follows:

  • boiling food prior to consumption.
  • administering antibiotics to patients.
  • not eating canned food.
  • filtering food.
  • preventing fecal contamination of food.

Therefore, the correct option for this question is A, i.e. boiling food prior to consumption.

To learn more about Food poisoning, refer to the link:

brainly.com/question/2192816

#SPJ1

4 0
2 years ago
What kinds of molecules contain the instructions for ordering amino acids in a protein?
kolezko [41]

Answer:

a

Explanation:

I think saturated fatty acids

6 0
3 years ago
Three cells each contain a 98% water wash were soaked in different solutions cell number one is so funny solution containing 100
stepladder [879]

Answer: Cell number one is an hypotonic solution, cell number two is an isotonic solution, and cell three is an hypertonic solution.

Explanation:

Cell number one which is a 98% water content is added the 100% water solution, water moves from low to high concentration. Therefore, the water moves from the solution into the cell, which is hypotonic.

Cell number two which is a 98% water content added with a 98% water solution. These two solutions are equal to one another, so the water does not move. This is isotonic.

Cell number three which is a 98% water content added with a 80% water solution. Water moves from high to low concentrations, so water moves from the cell to the solution. The water leaves the cell, which is an hypertonic.

6 0
3 years ago
A geneticist crossed pure breeding black mice with pure breeding brown mice. All the 992 mice in the F1 generation had black coa
uysha [10]

Answer:

C. An approximately three-to-one ratio of black to brown coated mice in F2 is accounted for by the black allele being dominant over the brown allele

Explanation:

Assuming the black genotype is BB and the brown genotype is bb.

At F1:

                 BB   x   bb = All Bb (black)

At F2:

                  Bb   x   Bb = BB (black), 2Bb (Black), bb (brown)

Th ratio of black to brown is 3:1

961 black : 317 brown is approximately 3:1.

Hence, the correct option is C.

<em>An approximately three-to-one ratio of black to brown coated mice in F2 is accounted for by the black allele being dominant over the brown allele</em>

4 0
3 years ago
Describe two integumentary system mechanisms that help regulate body temperature.
Basile [38]

Answer:

dilation of vessels and sweating

Explanation:

The vast blood supply of the skin aids in temperature regulation: dilated vessels enable heat to escape, while constricted vessels retain heat. The blood supply of the skin regulates body temperature. The skin aids in the maintenance of homeostasis. Humidity has an effect on thermoregulation because it reduces perspiration evaporation and, as a result, heat loss.

6 0
2 years ago
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