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Biology
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Why is it difficult for a baby to get enough oxygen to their tissues when there is a hole between the left and right ventricles?

It is important to remember the function of each of the ventricles. Remeber that the left ventricle pumps oxygenated blood around the body, and the right ventricle pumps deoxygenated blood to the lungs. I...

RA
Answered by Rachel A. Biology tutor
2402 Views

Explain the difference between tidal volume and total vital capacity. Under what circumstances would each occur?

Tidal volume is the normal volume of air inhaled in one breath at rest.

Total vital capacity is the maximum amount of air a person can expel from the lungs after a maximum inhalation. This usually ...

JB
Answered by Jemma B. Biology tutor
23239 Views

Why is the human circulatory system a double system?

The human circulatory system consists of the heart - a pump and a series of tubes - the blood vessels containing the blood. There is an atrium and a ventricle on each side of the heart and the two sides c...

YZ
Answered by Yuhui Z. Biology tutor
4091 Views

Why should we not overprescribe and overuse antibiotics?

Antibiotics are used for killing bacteria and therefore, it can act as a selection pressure. This means that the bacteria can mutate, in order to avoid being killed and this would be a favourable mutation...

NR
Answered by Niva R. Biology tutor
2967 Views

Mutations leads to the production of a non-functional protein. Explain why.

  1. Mutations changes triplets/codons after that point and causes a frame shift

  2. Changes amino acid sequence after this as it codes for different amino acids 

  3. Affe...

CH
Answered by Carmen H. Biology tutor
13068 Views

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