In male reproductive system, the testes are situated outside the abdominal cavity within a pouch called __________.
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The heart is classified as a(n)_____.
Which blood group is universal acceptor?
The largest artery in human body is
What type of a body plan does coelenterates, ctenophores and echinoderms have?
Which lobe of human brain is associated with hearing?
Sponges belongs to the phylum
___, found in blood, is responsible for oxygen transportation.