Which are the special proteins in muscles that contract and relax to cause movement?
Which factor affects the heart rate in mammals?
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Proteins are polymers formed from
Pancreatic juice require which medium for their action?
Syngamy is defined as
Arrange the following ina proper sequence.
A. Mutation
B. Reproductive isolation
C. Natural selection
D. Evolution
Which of the following animals do NOT belong to the class of reptiles?
Ovules are found within structure
Which of the following is NOT a pollination agent for cross pollination?