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Dvinal [7]
3 years ago
12

What are the parts of hair and what does each part contain

Biology
2 answers:
makvit [3.9K]3 years ago
7 0

Answer: "Hair follicles are divided into three parts : the <em>infundibulum</em>, the <em>isthmus</em> and the <em>bulb</em>."

"Each hair contains protein called Keratin. "

Explanation:

qaws [65]3 years ago
3 0

Answer:

Human hair consists of the hair shaft, which projects from the skin's surface, and the root, a soft thickened bulb at the base of the hair embedded in the skin. The root ends in the hair bulb. The hair bulb sits in a sac-like pit in the skin called the follicle, from which the hair grows.

Explanation:

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The thin muscle that separates the thoracic and abdominal cavities is the __________ .
Zanzabum
Answer: diaphragm

Explanation:
The diaphragm separates the thoracic cavity from the abdominal and pelvic cavity.

The diaphragm is a sheet of internal skeletal muscle located below the thoracic cavity that houses the heart and lungs. Below the diaphragm is the abdominal cavity.

The diaphragm plays an essential function for respiration. When the diaphragm contracts, the volume of the thoracic cavity increases so that air is drawn into the lungs.
8 0
3 years ago
Which is an example of acquisition of natural passive immunity?
inysia [295]
The transfer of antibodies from a mother to the fetus. This occurs naturally, and since it is the transfer of antibodies, it is passive immunity. 
8 0
3 years ago
Because identical twins begin as a single fertilized egg that then separates, identical twins share ____ percent of genetic make
Sergeeva-Olga [200]

Because identical twins begin as a single fertilized egg that then separates, identical twins share 100 percent of genetic makeup.

<h3>IDENTICAL TWINS:</h3>

Identical twins are a type of twins characterized by their phenotypic similarity. They look so much alike that they are almost morphologically indistinguishable.

Their similarity emanates from their genetic content. Identical twins are formed when two sperms fertilize a single egg, which then splits into two.

Since identical twins begin as a single fertilized egg that then separates, this means that they share 100% of their genetic makeup.

Learn more about identical twins at: brainly.com/question/986349

3 0
2 years ago
What came first the chicken or the egg?
HACTEHA [7]

Answer:

So the egg definitely came first.

Explanation:

Dinosaurs laid eggs, the fish that first crawled out of the sea laid eggs, and the weird articulated monsters that swam in the warm shallow seas of the Cambrian Period 500 million years ago also laid eggs. They weren't chicken's eggs, but they were still eggs.

5 0
2 years ago
In a plant cell wall the layer that is between a membrane, adding additional protection and support; not found in all plant cell
Tomtit [17]

Answer: SECONDARY CELL WALL.

Explanation: When cell wall grow,it becomes thickened,then it further deposits new layers of a different material (different from that of the primary cell wall) from where secondary cell wall is formed.

This secondary cell wall is made up of cellulose,hemicellulose,and lignin.

They function in providing additional strength,support, rigidity to cells and the larger plant.

8 0
2 years ago
Read 2 more answers
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