Biology

Biology Multiple Choice Questions and Answers (MCQ) PDF: Quizzes & Practice Tests with Answer Key. This section Biology basic concepts, theory and objective tests.

This section covers following topic MCQs: Bioenergetics, biological molecules, cell biology, coordination and control, enzymes, fungi, recyclers kingdom, gaseous exchange, growth and development, kingdom Animalia, kingdom plantae, kingdom prokaryotae, kingdom protoctista, nutrition, reproduction, support and movements, transport biology, variety of life, and homeostasis etc.

    Coordination and Control
    The light enters into the interior part of the eye through
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    Biodiversity Introduction
    The scientific name Homo sapiens is used for recognition of:
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    Biology
    Normally, what is the average life span of RBCs?
    Human red blood cells are formed mainly in the bone marrow and are believed to have an average life span of approximately 120 days.
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    Coordination and Control
    A person is not able to see nearby objects clearly if he has
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    Everyday Science
    Which is the longest bone in the human body?
    The longest bone in the human body is the femur, or thigh bone. It is located in the upper leg and connects the hip to the knee. The femur is typically about 20 inches long in adults. It is a strong and sturdy bone that helps to support the weight of the body and allows for movement of the leg.
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    Coordination and Control
    What gives the inner eye its dark color?
    The dark color of the inner eye is given by the choroid. The choroid is a layer of tissue that lies between the retina and the sclera (the white part of the eye). It is rich in blood vessels and contains a pigment called melanin, which gives it a dark brown color. The choroid helps to nourish the retina and protect it from damage.
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    Everyday Vitamins
    Which vitamin can damage the kidneys and cause kidney stones if taken in high doses?
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    Coordination and Control
    The person suffering from the short sightedness is not able to see the
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    Coordination and Control
    The person suffering from the long-sightedness is not able to see the
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    Common Human Diseases
    Which of the following illnesses can be caused by a lack of vitamin D?
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