In savanna trees; thick corky bark is an adaptation for?
A. absorbing water B. conserving water C. enhancing transpiration D. reducing transpiration E. resistance to bush fire Correct Answer: Option B
Which of the following factors does NOT affect photosynthesis?
A. carbon (iv) oxide B. light intensity C. relative humidity D. soil water E. temperature Correct Answer: Option C – relative humidity
An organism that transmits pathogens is called a?
A. prey B. commensal C. parasite D. symbiont E. vector Correct Answer: Option E – vector
The mouth part of a mosquito through which it sucks the blood of its victim is called?
A. hypopharynx B. mandible C. labium D. labrum E. stylet Correct Answer: Option E – stylet
When a plant shows yellowing of leaves and stunted growth; the plant is deficient in?
A. copper B. iron C. manganese D. silicon E. zinc Correct Answer: Option B – ironProducts
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