Everyday Science
NULL
Medium
Question
Which animal lacks red blood cells?
A
Frog
B
Earthworm
✓ Official correct answer
C
Snake
D
Crocodile
Community credibility
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A
Frog
No member explanations yet for this option.
B
Earthworm
No member explanations yet for this option.
C
Snake
No member explanations yet for this option.
D
Crocodile
No member explanations yet for this option.
Explanation
An earthworm has haemoglobin dissolved in plasma, not RBCs.
Hence the keyed answer is Earthworm.
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