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kati45 [8]
3 years ago
13

Crime-scene investigators collected hair from a dead person's body. is the hair human or nonhuman? describe two ways that the in

vestigators could distinguish human hair from animal hair
Biology
1 answer:
Nana76 [90]3 years ago
6 0
The investigators could distinguish human hair from animal hair by the patter of pigmentation and by the medullary index.
The pigmentation in human hairs is denser toward the cuticle, whereas in animal hair is denser toward the medulla. Human hairs are usually one colour throughout the whole length, while animal hairs may change colour suddenly.
The medulla in humans is thinner than in animals: the medullary index for human hairs is 0.33 or less; the medullary index for animal hairs is 0.5 or more.
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Law Incorporation [45]

Answer:

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Men determine the sex of a baby depending on whether their sperm is carrying an X or Y chromosome. An X chromosome combines with the mother's X chromosome to make a baby girl (XX) and a Y chromosome will combine with the mother's to make a boy.

Explanation:

3 0
2 years ago
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Answer:

Explanation:

The consumer is an individual who pays some amount of money for the thing required to consume goods and services. As such, consumers play a vital role in the economic system of a nation. Without consumer demand, producers would lack one of the key motivations to produce

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8 0
3 years ago
How does the rate differ in the presence of a catalyst?
adoni [48]
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This is due to catalysts providing an alternative reaction pathway with lowered activation energy required, allowing an increased rate of reaction.
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3 years ago
During which step of meiosis do homologous chromosomes pair up?
katrin2010 [14]

Answer:

<u><em>PROPHASE</em></u>

Explanation:

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