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natima [27]
3 years ago
10

Which sport below requires the least cardiovascular fitness?

Biology
1 answer:
avanturin [10]3 years ago
4 0

Answer:

The answer is C

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Robert Hooke was the first scientist to give the cell a name. Which statement is true about him?
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Answer:

 B) Under a microscope he observed box-like compartments of cork tree bark.

He observed a cork under a microscope.

Explanation:

He observed a cork under a microscope.

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3 years ago
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You are a dietician. Your client wants to discuss an image he found online while trying to conduct his own research about health
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How does the blood of an insect compare to ours?
dangina [55]
It compares to ours because we mostly the same blood cells
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3 years ago
The first cells to initiate an electrical signal in the heart is the
Lady_Fox [76]

Answer:

Answer is Sinoatrial node, SA.

Explanation:

The sinoatrial node, SA, is known to be a group of cells which are found at the top of the heart.

The electrical signal that is initiated by the sinoatrial node bring about or stimulates the atria and then the ventricle of the heart.

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Ordinary cell division produces two daughter cells that are genetically identical. This type of cell division is important for a
Ratling [72]

Answer:

C) production of sperm and eggs

Explanation:

Sperms and eggs are the male and female gametes respectively. Formation of sperms and egg cells require meiotic cell division. Meiosis in sperm mother cells and egg mother cells reduces the chromosome number of half in the sperms and eggs. Meiosis also adds new gene combinations in these gametes by the process of crossing over.  

Mitosis cannot reduce the chromosome number to half in the sperms and eggs. Absence of crossing over in mitosis leads to the formation of genetically identical progeny cells from mitosis.  

Hence, mitosis can not form sperms and egg cells.  If it does, the sperms and egg cells would not have genetic variations and there would be doubling of chromosome number with each round of sexual reproduction.

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