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kumpel [21]
3 years ago
9

How is a fetus able to extract O2 from its mother's blood?

Biology
2 answers:
Reil [10]3 years ago
8 0

Answer:

E.

Explanation:

A fetus is able to extract O2 from its mother's blood because fetal hemoglobin has a higher affinity for O2 than maternal hemoglobin. Thus making it alot easier for the hemoglobin to bind to oxygen. This causes the oxygen-dissociation curve to move towards the left of the maternal oxygen-dissociation curve.

Temka [501]3 years ago
4 0

Answer:

E. Fetal hemoglobin has a higher affinity for O2 than maternal hemoglobin.

Explanation:

Hemoglobin is a protein found in the blood which is responsible for binding to oxygen for efficient circulation to other parts of the body.

Fetal hemoglobin is usually at a high level and it’s produced around 6 weeks of conception. The fetal hemoglobin has a higher affinity for Oxygen than that of the maternal hemoglobin and it helps in carrying oxygen from the bloodstream of the mother to cells and tissues of the fetus.

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The table shows the commonly eaten foods of some groups of organisms.
scoray [572]

Answer:

3. B, D

Explanation:

A primary source is an animal that eats only plants. (herbivore) A secondary source is an animal that only eats herbivores (carnivores)

B has birds; which are food for carnivores, and fruits, nuts, and blossoms; which are food for herbivores.

D has vegetables and grains; which are food for herbivores, and meat; which is food for carnivores

The other options have only food for carnivores, or only food for herbivores, so the answer is 3

3 0
3 years ago
HELP!!!! The diagram below shows a portion of the water cycle. What does Y most likely represent
astraxan [27]

Answer:

Y most likely represents springs.

3 0
3 years ago
What would happen if the respiratory system and circulatory system didn’t work together?
Misha Larkins [42]
Your blood would not be oxygenated so cells and tissues and muscles wouldn't receive any oxygen
7 0
3 years ago
2
Greeley [361]

Answer:

D

Explanation:

A) Water that falls from the clouds towards the ground, especially as rain or snow.

B) The continuous movement of water on, above and below the surface of the Earth.

C) When plants or animals create offspring.

D) a recurring  process where dead plants decomposes and provides nutrients to the soil that are absorbed by plant roots, making more plants grow.

Hope that helped :)

3 0
3 years ago
Chapter 12 and 13 assessment
Sveta_85 [38]
Answer:
Sea levels will rise to flood some coastal areas

Explanation:
With the global temperature rising, glaciers will start to melt and that will cause a rise in sea levels
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