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gtnhenbr [62]
2 years ago
14

Please can you explain the path in which oxygen takes to get to the blood stream ​ps:mia hmu

Biology
1 answer:
777dan777 [17]2 years ago
4 0

Answer:

The oxygen enters the bloodstream from the alveoli, tiny sacs in the lungs where gas exchange takes place.The transfer of oxygen into the blood is through simple diffusion. The oxygen-rich blood returns to the heart

Explanation:

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You are given two solutions containing different purified DNAs. One is from the bacterium P. aeruginosa and has a G + C composit
bonufazy [111]

Answer:

The solution of P. aeruginosa will yield higher Tm value.

Explanation:

The solution of P.aeruginosa contain 68% G+C composition as a result the DNA of P.aeruginosa is more stable than the DNA of mammal contain only 42% G+C composition.G+C composition is most stable because guanine is linked to cytosine by 3 hydrogen bonds whereas adenine linked to thymine by 2 hydrogen bonds.

   As  P.aeruginosa DNA is more stable than mammalian DNA,as a result the DNA solution of P.aeruginosa will yield high Tm(melting temperature) value than that of mammalian DNA.

4 0
3 years ago
The virtually universal decline in near vision in middle adulthood is called __________.
Anarel [89]

The virtually universal decline in near vision in middle adulthood is called presbyopia.

<h3>What is vision?</h3>

Vision is the ability of the eyes to receive and send signals to the brain which then interprets and produces a picture of the object.

A common eye defect the occurs as people grow into adulthood is known as presbyopia.

In conclusion, presbyopia is an age-dependent eye defect.

Learn more about presbyopia at: brainly.com/question/9121049

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6 0
1 year ago
Cross a mother who carries the hemophilia gene but does not express it, With a father with hemophilia
alisha [4.7K]

Answer: The cross will produce 4 offsprings with the following genotypes:

XhXh, XhX, XhY and XY.

Explanation: Hemophilia is an X-linked disease. A woman who carries the hemophilia gene but doesn't not express it is heterozygous, therefore she has a genotype of XhX, and a man who has hemophilia has a genotype of XhY. A cross between them will produce one female and one male who are hemophilic (XhXh and XhY), one female who is a carrier (XhX) and one normal male.

See the punnett square attached for the cross

3 0
3 years ago
A. Mutualism<br>B.Commensalism<br>C.Parasitism<br>D.Predation​
KIM [24]

Answer:

D.Predation

Explanation:

Living organism interact with one another in their natural environment. The interaction of two organisms is called SYMBIOSIS. Symbiosis, however, can be of different types depending on how the organisms relate. One type of symbiotic relationship between organisms is called PREDATION.

Predation is a relationship between two organism in which one organism called PREDATOR kills and feeds on the other organism called PREY in order to obtain energy. In this question, a Manta Ray and a zooplankton is shown.

The Manta ray is described as an aquatic organism that feeds on tiny species like fishes while the zooplankton is a tiny organism found in water bodies. The Manta Ray is the predator that kills and feeds on the zooplankton, hence, the relationship is a PREDATION.

6 0
3 years ago
I could really use some help on this question l, please help!?! Thank you ❤️ much love stay safe 2020
juin [17]

Answer: its B and D

Explanation:

7 0
2 years ago
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