Question
Assertion: Arachnoid layer helps in speeding up the transmission of nerve impulses along the axons.
Assertion (A): Arachnoid layer helps in speeding up the transmission of nerve impulses along the axons. Reason (R): Axon endings at the…
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Many nuclear power plants are constructed near water sources. Identify the kind of pollution caused.
Many nuclear power plants are constructed near water sources. They use water for cooling their machinery and release it back into the…
Question
Owls are nocturnal animals. They are active at night and hunt small animals for food.
Owls are nocturnal animals. They are active at night and hunt small animals for food. Owls have large eyes and can see…
Question
Sunil tried to match the tropic movements in plants with the stimulus they respond to.
Sunil tried to match the tropic movements in plants with the stimulus they respond to. Tropism Stimulus P Thigmotropism Touch Q Geotropism…
Question
Observe the following picture, identify the defect and the cause of the defect.
Observe the following picture, identify the defect and the cause of the defect. (a) Simple goitre, under secretion of thyroxine. (b) Ex-ophthalmic…
Question
Name the following:
Name the following: (a) The fully developed part of the ovary containing a mature ovum. (b) A waxy layer on the upper…
Question
Given below is the diagram of a human heart. Read the information below the diagram and fill in the blanks:
Given below is the diagram of a human heart. Read the information below the diagram and fill in the blanks: The human…
Question
Arrange the terms in each group in the correct order.
Arrange the terms in each group in the correct order. Write them in a logical sequence beginning with the term that is…
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Read the explanations given below and name the structures:
Read the explanations given below and name the structures: (a) The canal through which the testes descend down into the scrotum just…
Question
Given below is an outline of the human body showing the important endocrine glands. Match the glands marked (a) to (e) with their correct functions:
Given below is an outline of the human body showing the important endocrine glands. Match the glands marked (a) to (e) with…