Biology

Which of the following is an agent of a sexually transmitted disease?

A. Entamoeba histolytica B. Salmonella typhi C. Treponema pallidum D. Clostridium tetani Correct Answer: Option C - Treponema pallidum

5 years ago

Which of the following protects the essential parts of the flower at bud stage?

A. Stamens B. Sepals C. Petals D. Carpels Correct Answer: Option B - Sepals

5 years ago

Which of the following theories was NOT considered by Darwin in his evolutionary theory?

A. variation B. survival of the fittest C. use and disuse D. competition Correct Answer: Option C - use and…

5 years ago

An example of an endospermous seed is?

A. been seed B. cashew nut C. cotton seed D. maize grain Correct Answer: Option D - maize grain

5 years ago

The ability of a living organism to detect and respond to changes in the environment is referred to as?

A. locomotion B. taxis C. irritability D. growth Correct Answer: Option C - irritability

5 years ago

Which of the following plant hormone is responsible for ripening of fruits?

A. Gibberellins B. Abscisic acid C. Ethylene D. Cytokinins Correct Answer: Option C - Ethylene

5 years ago

When a cell is placed in solution and the size of the cell increases, the concentration of solution is said to be?

A. isotonic B. dilute C. hypotonic D. hypertonic Correct Answer: Option C - hypotonic

5 years ago

The insects in which the maxillae are modified into a long coiled proboscis is?

A. housefly B. butterfly C. mosquito D. grasshopper Correct Answer: Option B - butterfly

5 years ago

Which of the following conditions is NOT necessary for photosynthesis to take place?

A. ChlorophyII B. Light C. Carbon(II)oxide D. Carbon(IV)oxide Correct Answer: Option C - Carbon(II)oxide

5 years ago

Insects that goes through adult stage without becoming pupa are except?

A. crickets B. cockroach C. grasshopper D. bees Correct Answer: Option D - bees Explanation The first stage of incomplete…

5 years ago