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Kisachek [45]
3 years ago
15

Which two elements make up the most

Biology
1 answer:
Dmitriy789 [7]3 years ago
7 0

Answer:

C. H and O

Explanation:

Almost 99% of the human body's mass is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus, in that order.

Element   Symbol   % in body

Oxygen       O              65.0

Coal             C               18.5

The human body is composed of 60% water, that is, H2O.

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4) Describe the relationship between molecular weight (MW) and the rate of diffusion.
evablogger [386]

Answer: The rate of diffusion is directly proportional to the molecular weight of any gaseous substance

Explanation:

According to Graham's law of diffusion, the rate of diffusion is directly proportional to the molecular weight of the gaseous substance.

Hence, the lighter the molecular weight, the faster the diffusion.

7 0
4 years ago
Which term best deseribes a community in which people mostly grow crops? O A. Manufacturing O B. Hunting and gathering O C. Dome
Ierofanga [76]

Answer:

Hello There!!

Explanation:

I believe the answer is D. Agricultural​.

hope this helps,have a great day!!

~Pinky~

6 0
3 years ago
Hypothesize how some people have red hair through viable errors. Explain your answer in 1-2 sentences.
DENIUS [597]

Considering a viable error as a mutation that remains viable for the continuation of life, we can confirm that some people have red hair through viable errors due to mutations in the genetic code.

A viable error or mutation would be any mutation that allows the cell in question to stay alive. This is because there are mutations in which <em><u>key features or processes essential to life are altered. </u></em>

The cells that suffer these mutations would not be able to sustain life. The mutation that causes red hair is a mutation in the gene responsible for melanin (the pigment that gives hair its color) is <u>not one that affects an essential process.</u>

<u />

For this reason, we can confirm that some people have red hair through viable errors given that these errors or mutations do not affect mechanisms <em><u>essential </u></em>to life.

To learn more visit:

brainly.com/question/17106056?referrer=searchResults

7 0
3 years ago
Identify each of the following as a positive or negative impact of science on society. In 1965, Congress passed the Cigarette La
maksim [4K]

Answer:

p

p

n

p

p

Explanation:

8 0
3 years ago
How far does the Pwave travel in 2 minutes?
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Answer:

hour

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