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weeeeeb [17]
3 years ago
15

1. You and your classmate are discussing different organs and organ systems within the human body.

Biology
1 answer:
GuDViN [60]3 years ago
3 0
The answer to the question is B - The lungs exhale carbon dioxide, which is a waste gas and needs to be removed from the body.
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Which best explains why muscle cells are different from blood cells
Rus_ich [418]

Answer:

A mutation occurs during the development of muscle cells but not in blood cells. Different genes are activated in muscle cells than in blood cells. Muscle cells experience different environmental influences than blood cells.

Explanation:

3 0
2 years ago
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Color in McIver beetles is determined by two alleles at one gene locus. McIver beetles must have a heterzygous genotype (genotyp
seraphim [82]

Answer: The frequency of brown beetles is 0.32.

Explanation: The frequency of A1 allele is 0.8. As p+q=1, or the sum of dominant and recessive frequencies equals 1 or 100%:

1 - 0.8 = 0.2

In Hardy-Weinberg principle,

p^{2} + 2pq + q^{2} = 1

2pq represents the frequency of heterozygote individuals, so:

genotype A1A2 = 2*0.8*0.2 = 0.32.

Thus, the frequency of brown beetles (A1A2) in the population is 0.32.

3 0
3 years ago
Candace is wanting to be sure that she is doing what she can to prevent the spread of disease. Which of the following should she
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Answer:  She should Avoid Contact with other people's bodily fluids.

Explanation: Hope that helps! (:

8 0
2 years ago
_______ research has the potential to significantly impact the development of disease-modifying treatments for Parkinson's disea
nydimaria [60]

<u>Stem cell </u>research has the potential to significantly impact the development of disease-modifying treatments for Parkinson’s disease with considerable progress made in creating dopamine-progressing cells.

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Parkinson’s disease, a neurodegenerative disease, leads to reduction of dopamine (a neurochemical messenger which carries messages involving thinking and body movements to brain) in the body because the disease will target and kill dopamine-producing nerve cells (neurons). This leads to loss of movement and thinking abilities which are activated by dopamine.

Stem cells research is done to study about the prospects of stem cells in stem cell therapy for Parkinson’s patients as a viable source of new dopamine nerve cells. Research has been involved in growing stem cells to replace or regenerate dopamine-producing nerve cells by using embryonic stem cells or induced pluripotent stem cells as a treatment modality in Parkinson’s disease.

5 0
3 years ago
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When the cell duplicates chromosomes and separates into two separate nuclei, the cell is said to be in what phase?
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S PHASE

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7 0
3 years ago
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