Biological control is to check growth of
plants
animals
weeds
one pest by another
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- The olfactory area is concerned with
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- Savannah is
- Baldness is seen only in the males because
- Which one of the following acts as a communication system?
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- The plant cells are surrounded rigidly by
- Food substances are substances by
- The following disease is prevented by triple-antigen immunization
- The two German scientists who proposed the 'cell theory' were
- Chemical substances that called have effect on growth of plants are called
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- The germ theory of diseases was put forward by
- What is an antigen?
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- Loss of blood is
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