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Sergio039 [100]
3 years ago
8

What is skin discolouration caused by?

Biology
1 answer:
beks73 [17]3 years ago
4 0
An excess production of melanin. Melanin is a pick me to give skin its color.
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Question 8 (1.25 points)
tester [92]

Answer:

i believe the answer would be d, all of the above

Explanation:

all are questions relating to gene variability of a species, which would be what the population geneticist would specialize in. the scientist must ask questions and then conduct research. i hope that helps :) have a lovely week

4 0
3 years ago
Which of the following pairs accurately connects a macromolecule to its monomer?
Mice21 [21]

A monomer can be defined as the molecule that is capable of binding in long chains. The monomers bind together to form different polymers by the process of polymerization.

The monomer of carbohydrate is monosacchride. The monomer of proteins is amino acid, and that of lipids is glycerol and fatty acids. These three macromolecules are wrongly paired in the question.

The monomer of nucleic acids is nucleotide. This is correctly matched.

Hence, the correct answer is 'Option B - nucleic acids - nucleotides'.

7 0
3 years ago
Veronica got a cut on her arm, and it started bleeding. Her circulatory system started working hard to prevent blood loss and pr
skelet666 [1.2K]
Platelets would help the blood clot, therefore preventing blood loss. White Blood Cells would help protect against infection. So, I believe the answer would be platelets & white blood cells.
8 0
3 years ago
Read 2 more answers
Atomic number is the number of an atom's <br>​
fenix001 [56]

Answer:

Explanation:

The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element

3 0
3 years ago
When elongated, tube-shaped cells from the lining of the intestine are treated with a certain chemical, the cells sag and become
Andrei [34K]

Answer:

The internal structures disrupted by this chemical are probably VACUOLES.

Explanation:

A vacuole is a large membrane-bound vesicle in a cell's cytoplasm.

The central vacuole of a cell houses the digestive processes which includes chemicals that come to attack the cell; also it helps the cell regulates it's water concentration during changing environmental conditions.

vacuoles are present in the absorptive cells (enterocytes) covering the wall of the intestine

8 0
3 years ago
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