Question 36
Question 36 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
16. Development of organi...
16.4. Sexual reproduction in humans

Identify, on diagrams, the placenta and umbilical cord and describe their functions in relation to the exchange of dissolved nutrients, gases and excretory products between the blood of the mother and the blood of the fetus (structural details are not required)

13. Excretion
13.1. Excretion

State that carbon dioxide is a waste product of respiration, which is excreted through the lungs

9. Human gas exchange
9.1. Human gas exchange

State the percentages of the gases in atmospheric air