Which are the special proteins in muscles that contract and relax to cause movement?
Which of the following is not a hormone found in animals?
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Name the organ where the embryo develops:
Which of the following animal is not triploblastic?
Bacteria, blue-green algae or cyanobacteria and mycoplasma are examples of organisms of which kingdom?
Which type of epithelial tissue allows transportation of substances through a selective permeable surface in the lining of food vessels or lung alveoli?
Which of the following is a bisexual flower?
Human blood platelets releases ___ which helps in clotting of blood.
Which part of the human brain is the centre for intelligence, memory and emotions?