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GenaCL600 [577]
3 years ago
14

Most cancer-causing air pollutants are found outdoors. a. True b. False

Biology
1 answer:
igor_vitrenko [27]3 years ago
6 0
The answer is (A) as <span> increasing risk of lung cancer is from increasing levels of exposure to outdoor air pollution and </span>particulate matter
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What are two examples of organic molecules<br> that scientists think first formed?
e-lub [12.9K]

Answer:

Amino acids and nucleotides

Explanation:

Amino Acids -

Amino acids are organic compounds that mix to create proteins.

Nucleotides -

A nucleotide is an organic molecule that's the building block of DNA and RNA.

8 0
3 years ago
Explain how the heliocentric model has been modified with the help of telescopes and probes ?
baherus [9]

Answer:

They collect more information.

Explanation:

The heliocentric model has been modified with the help of telescopes and probes because telescopes and probes collect more accurate information about the solar system and planets. Due to information collected from these instruments, scientists are able to modify the heliocentric model more accurately. So we can conclude that with the help of telescopes and probes, the heliocentric model has been modified.

6 0
3 years ago
an organism had 8 chromosomes in its body cells. how many chromosomes will be in the body cells of the offspring?
larisa [96]

Answer:

8

Explanation:

I am assuming that this organism reproduces sexually. The body cell of the offspring will be the same as the parent. The reproductive cell of the organism will have half the amount of chromosomes as the body cell.

So if the parent has 8 chromosomes in its body cells then the offspring will have 8 chromosomes in its body cells.

4 0
3 years ago
The selective serotonin uptake inhibitors, like the antidepressants Prozac, Zoloft, or Paxil, result in increased levels of sero
never [62]

Answer:

increase anxiety; decreased vulnerability to overreact to stress

Explanation:

Serotonin (5-HT) is a natural neurotransmitter that carries signals between nerve cells (neurons) throughout the body. This neurotransmitter (serotonin) is responsible for regulating many biological functions (e.g., mood, digestion, sleep, etc). Moreover, it has been shown that there is an association between low cerebrospinal fluid 5-hydroxyindole-acetic acid (5-HIAA, the principal serotonin metabolite in the brain) levels and the risk of developing depression or destructive behaviors. In addition, serotonin concentration can also be elevated in situations of anxiety and/or stress. Antidepressants such as Prozac, Zoloft and Paxil act as serotonin uptake inhibitors that increase serotonin concentration at the synaptic site. Like other drugs, these antidepressants may lead to increase anxiety and decrease the vulnerability to react to stress by downregulating sensitivity to serotonin released during natural stress situations.

3 0
2 years ago
What is energy's role in aerobic respiration?
Bad White [126]
Energy in the initial form of glucose is used with oxygen to produce carbon dioxide, water and energy in the form of ATP which is taken up by the cell in order to perform cellular processes. 
4 0
3 years ago
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