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enot [183]
3 years ago
5

Describe how new hair fibers are formed

Biology
1 answer:
leva [86]3 years ago
5 0

Answer:

Taking nutrients from the dermal papilla, the hair bulb generates new hair cells. As these cells move up through the hair root, they mature through a process called keratinization, fill with fibrous protein and lose their nucleus.

Explanation:

I found this on the internet and don't know if it is correct but if it is can I get a brainliest please?

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The atlantic cod (gadus callarias) is a fish which lays about 5 000 000 eggs in its lifetime. On average, only two of these eggs
lozanna [386]

The atlantic cod (gadus callarias) is a fish which lays about 5 000 000 eggs in its lifetime. On average, only two of these eggs survive to become adult cod. This promote evolution because the environment selects the most evolved animals to survive that environment.

<h3>What is the evolutionary process?</h3>

Evolutionary processes aim, therefore, to generate greater adaptation of species in an environment. When new species of organisms are formed from gradual changes in preexisting species.

So although there are several eggs initially only those that survived the environment are able and evolved to reproduce, so the evolution of species is carried out.

See more about evolution of species at brainly.com/question/13194079

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3 0
1 year ago
Maria wanted to grow a fern in her backyard. Acting on a suggestion from a friend, she collected brown dots from the underside o
Colt1911 [192]

Answer:

A. The fern transitioned from gametophyte generation to sporophyte generation.

Explanation:

Ferns undergo an ALTERNATION of GENERATIONS in their reproductive life cycle. That is, they alternate between an incospicuous gametophytic stage and a dominant sporophytic stage. The sporophyte produces haploid spores, which germinates into the gametophyte plant called PROTHALLUS.

The gametophyte produces gametes (male and female) which fuse together to form the diploid zygote, which eventually develops into the SPOROPHYTE plant via mitosis. In this question, the brown dots from the underside of a fern's leaves that Maria collected are the spores.

When she places them in a pot, the spores germinated into gametophyte stage, then formed sporophyte, which is the small leaves she noticed growing from the pot. From this, it can be observed that the fern is transitioning from GAMETOPHYTE generation to SPOROPHYTE generation.

3 0
3 years ago
Read 2 more answers
Psychology is considered a science because it uses a systematic method of asking and answering questions.
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This is true - psychology measures observable behaviours and used scientific methods
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Earth travels around the Sun at about 67,000 miles per hour. Earth's motion, therefore, is an example of _____.
irina [24]

Answer:

B. Velocity

Explanation:

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13 If 90 families were lost in an extinction event that lasted 10 million
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G. cause if you just do a ratio everything adds up.
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