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