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3 years ago

What system delivers oxygen and nutrients to every cell in the body

Biology

1 answer:

Blababa [14]3 years ago

4 0

Answer:

The Circulatory or Cardiovascular System

Explanation:

This system allows the circulation of blood to every cells of the body with the transport of oxygen and nutrients essential for its survival. These nutrients include glucose, amino acids, vitamins, minerals and so on produced by the body through metabolism.

The circulatory system comprises also of the lymphatic system, which allows for the flow of lymphs.

The circulatory system is made up of systemic and pulmonary circulation. The heart and blood vessels being the major structures in this circulation. The blood moves to the lungs and get oxygenated (pulmonary circulation) and it then returned back to the heart for transport to other parts of the body known as the systemic circulation. Hemoglobin, which carries oxygen in the blood and also carbon iv oxide for excretion out of the plasma. From the digestive system, the nutrients are absorbed into the blood plasma and then transported for the cell use or for storage.

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4 years ago

Dr. Smith's parents have normal hearing. However, Dr. Smith has an inherited form of deafness. Deafness is a recessive trait tha

AleksAgata [21]

Answer:

The correct option is C) Dd and Dd

Explanation:

To explain the answer, lets make a punnet square with a cross between Dd and Dd.

D d

D DD Dd

d Dd dd

As deafness is a recessive trait, this means that both the alleles in a person should be same and recessive for that trait to occur in the phenotype. A cross between heterozygous carriers show that there will be a 25% probability that the offsprings produced will get the recessive alleles and hence they will be deaf. 50% of the offsprings will have the chance to be carriers like their parents. And there willbe a 25% chance that they will have normal homozygous alleles.

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