Biology MCQs

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The annelids (Annelida, from Latin anellus, “little ring”), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.

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Turmeric is the rhizome or underground stem of a ginger-like plant. It is usually available under ground, as a bright yellow, fine powder.

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Bats can fly in dark because they. Bat echolocation is very much similar to a SONAR and is a perceptual system where ultrasonic sounds are emitted specifically to produce echoes.

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The larger the larynx, the longer and thicker the vocal folds and the lower the pitch of the voice. Typical male voices range in pitch from 85 hertz to 180 hertz. Typical female voices range from 165 hertz to 255 hertz.

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Generally blindness is caused by the dryness and hardness of cornea. Cornea is a clear layer which helps passing of light. It is an outer layer and can be transfer from one person to another.

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Human beings have 46 chromosomes in their cells. 22 pairs of autosomes and 2 special chromosomes called sex chromosomes are present.

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Palynology is the study of pollen grains produced by seed plants and spores. It represents the land flora and can be used in many different disciplines.

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Alexander Fleming discovered penicillin, whose use as an antibiotic has saved millions of lives.

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Euglena is an example of the Protista kingdom and has both plant and animal characteristics.

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Mitosis is a process where a single cell divides into two identical daughter cells.