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ale4655 [162]
3 years ago
6

What is the composition of hair?

Biology
1 answer:
Katyanochek1 [597]3 years ago
4 0

Answer:

The hair is made up of 95% keratin, a fibrous, helicoidal protein (shaped like a helix) that forms part of the skin and all its appendages (body hair, nails, etc.). Keratin is synthesized by keratinocytes and is insoluble in water, thus ensuring impermeability and protection for the hair.

Explanation:

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if the velocity of a vehicle starting from rest reaches 5m/2s in 2seconds, is the velocity of the vehicle uniform ?explain.​
Vanyuwa [196]

Explanation:

Avg speed × total times = total distance

20×25=500

Since acceleration in the 1st interval is same as deceleration in the 3rd interval and deceleration is from the same velocity achieved after acceleration, t

1

=t

3

s

1

=

2

1

×5t

1

2

s

2

=(5t

1

)t

2

s

3

=(5t

1

)×t

3

−

2

1

×5×t

1

2

=(5t

1

)×t

1

−

2

1

×5×t

1

2

s

1

+s

2

+s

3

=5t

1

t

2

+5t

1

2

⇒5t

1

2

+5t

1

t

2

=500−−−−1

2t

1

+t

2

=25−−−−2

Solving (1 ) and (2) ⇒t

1

=5,t

2

=15sec

6 0
3 years ago
Bovine spongiform encephalopathy (BSE) is a slowly progressive, degenerative, fatal disease affecting the central nervous system
Kisachek [45]

Answer:

<u><em>The correct option is C) Prions</em></u>

Explanation:

Bovine spongiform encephalopathy (BSE)  or Mad Cow Disease  is a disease which occurs due to transmissible particles known as prions. Prions cannot be considered as living organisms as they do not acquire many of the living characteristics. They are just considered as a protein which gest converted into an activated, toxic form  as soon as they encounter a host cell. This toxic protein harms the central nervous system (CNS) of the cow host and is transmissible.

8 0
3 years ago
Why do the changes you describe in part b provide an example of a cycle ?
vladimir1956 [14]
What is part B I need more info.
3 0
3 years ago
Which structure contains pockets or puckers that are called haustra?
Alex777 [14]

It is the large intestine

6 0
3 years ago
FIRST RIGHT ANSWER GETS BRAINLYEST OR WHATEVER
rjkz [21]

Answer:

The answer would be C) Nitrogen

Explanation:

8 0
3 years ago
Read 2 more answers
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