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andrew11 [14]
2 years ago
14

State the differences in compositionof blood between the aorta and main vein

Biology
2 answers:
Alja [10]2 years ago
7 0
The main difference between aorta and vena cava is that aorta carries oxygenated blood whereas vena cava carries deoxygenated blood. Aorta is the main artery that leaves the heart through the left ventricle. It supplies oxygenated blood throughout the body.
Ad libitum [116K]2 years ago
3 0

Answer:

The placenta is a unique vascular organ that receives blood supplies from both the maternal and the fetal systems and thus has two separate circulatory systems for blood: (1) the maternal-placental (uteroplacental) blood circulation, and (2) the fetal-placental (fetoplacental) blood circulation. The uteroplacental circulation starts with the maternal blood flow into the intervillous space through decidual spiral arteries. Exchange of oxygen and nutrients take place as the maternal blood flows around terminal villi in the intervillous space. The in-flowing maternal arterial blood pushes deoxygenated blood into the endometrial and then uterine veins back to the maternal circulation. The fetal-placental circulation allows the umbilical arteries

Explanation:

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Who is Mendel? What did he study? Why was his research important
Eddi Din [679]

Answer:

Gregor Mendel was an Austrian monk who discovered the basic principles of heredity through experiments in his garden. Mendel's observations became the foundation of modern genetics and the study of heredity, and he is widely considered a pioneer in the field of genetics. He is known as the "father of modern genetics".

4 0
3 years ago
By regulating the cell cycle, multicellular organisms gain which of these benefits?
Salsk061 [2.6K]

Answer:

The regulation of the cell cycle helps in wound healing as well as replacing the lost cells by division. Thus, options B and C are correct.

Explanation:

The cell cycle can be described as the process of division and reproduction. The events result in the formation of multiple cells that have been able to deal with the repair mechanism of the body.

With the regulation of the cell cycle, the division process of the cell has been initiated and helps in the formation of multiple cells. The formed daughter cells have been able to heal the wounds effectively by accumulating and removing the dead cell.

The cell cycle has also been responsible for the replacement of lost cells, with the formation of new cells. Thus, options B and C are correct.

7 0
1 year ago
Describe physical or mental disability of Down syndrome
shepuryov [24]

Answer:

It is usually associated with physical growth delays, mild to moderate intellectual disability, and characteristic facial features. The average IQ of a young adult with Down syndrome is 50, equivalent to the mental ability of an eight- or nine-year-old child, but this can vary widely.

Symptoms: Delayed physical growth, characteristic facial features, mild to moderate i...

Other names: Down's syndrome, Down's, trisomy 21

Causes: Third copy of chromosome 21

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Explanation:

Hope it helps

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3 0
2 years ago
What are the symptoms of lung cancer before treatment
Hatshy [7]
Coughing can be a symptom along with shortness of breath

8 0
3 years ago
Which of the following characteristics of plants is absent in their closest relatives, the charophyte algae?
Phoenix [80]

Answer: d. alternation of multicellular generations

Explanation:

The gametophytic as well as the sporophytic generations are alternative in the life cycle of the multicellular plants. This can be seen among the land plants. This feature cannot be seen in the algal species as they are unicellular in nature. Thus cannot be seen in the relatives of charophyta algae.

3 0
3 years ago
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