Question 21
Question 21 of 40
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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
9. Transport in animals
9.2. Heart

State that blood is pumped away from the heart in arteries and returns to the heart in veins

9. Transport in animals
9.1. Circulatory systems

Describe the circulatory system as a system of blood vessels with a pump and valves to ensure one-way flow of blood