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zubka84 [21]
3 years ago
11

Which of the following BEST describes the process of mitosis?

Biology
1 answer:
amm18123 years ago
7 0

Answer:

A cell duplicates its DNA and divides it evenly between two daughter cells,

resulting in two genetically identical somatic (body) cells as the parent cell.

Explanation:

Mitosis, a process of cell duplication, or reproduction, during which one cell gives rise to two genetically identical daughter cells. Strictly applied, the term mitosis is used to describe the duplication and distribution of chromosomes, the structures that carry the genetic information.

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Oxytocin and cholecystokinin are transported through the bloodstream and arrive at the uterus at the same time. Why does oxytoci
9966 [12]

Answer:The uterus has receptors for oxytocin, but not for cholecystokinin.

Explanation:

Both of the hormones are released and travel via same pathway towards the  uterus. The uterus responds to oxytocin but does not responds to cholecystokinin because the uterus has no receptor for this hormone.

Cholesystokinin is secreted from gastrointestinal system and is responsible for stimulating the digestion of protein and fat.

Whereas oxytocin plays a major role in the childbirth, sexual reproduction and social bonding.

3 0
3 years ago
When oxygen is plentiful inside a skeletal muscle cell, what happens to the pyruvic acid that is formed during glycolysis?
Iteru [2.4K]

Answer:

d. it diffuses into mitochondria to be broken down to generate ATP

Explanation:

When enough oxygen is available in the muscle cells, pyruvate produced by glycolysis enters the mitochondrial matrix. Once inside the mitochondria, pyruvate is decarboxylated into acetyl CoA. The reaction is catalyzed by the enzyme complex pyruvate dehydrogenase. Acetyl CoA then enters a sequence of reactions called Kreb's cycle and is broken down into CO2 and H2O. The energy released during these reactions is stored in the form of NADH and FADH2.

The NADH and FADH2 are oxidized by giving their electrons to O2 via electron transport chain. During this oxidation, the proton concentration gradient is generated across the inner mitochondrial membrane which in turn drives the process of ATP synthesis.

4 0
3 years ago
The cause of the phases of the moon is a cycle that is close to how long
AnnZ [28]

Answer:

The lunar phases gradually change over the period of a synodic month (about 29.53 days), as the orbital positions of the Moon around Earth and of Earth around the Sun shift. The Moon's rotation is tidally locked by Earth's gravity; therefore, most of the same lunar side always faces Earth.

Explanation:

7 0
3 years ago
Which of the following best explains the difference between micro and macro evolution? A. Microevolution is based on ideas, whil
gtnhenbr [62]

Answer: C. Microevolution is small scale change to the gene pool of a population while macroevolution is larger scale changes that lead to speciation.

Explanation:

Microevolution can be defined as a small change in the gene frequency within a gene pool of the species, these changes will be inherited by the organisms and there will not be any drastic change at the species level. But in case of macroevolution the large scale change occurs at the genetic level, which retain for long. This leads to development of new organisms or results in speciation.

4 0
3 years ago
Different cell types can react differently to epinephrine in the human body. Choose two cell types in the human body and briefly
Ipatiy [6.2K]

Answer:

I haven't really learned about cell types but I did find this information

Explanation:

How can epinephrine have different effects on different cells? Different cells have different receptors that bind epinephrine. Different cells activate different enzymes as a result of epinephrine binding.

epinephrine induces increased vascular smooth muscle contraction, pupillary dilator muscle contraction, and intestinal sphincter muscle contraction. Other significant effects include increased heart rate, myocardial contractility, and renin release

Hope it at least helps a little :)

3 0
2 years ago
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