A. introducing a population of species similar to that of the pest B. increasing the population of the natural enemies…
A. The use of herbicides and pesticides in farms can cause pollution B. Bush-burning encourages desertification C. Excessive use of…
A. Both organisms are harmful to each other B. The association involves many organisms C. The association is beneficial to…
A. All food chains start with a green plant B. Food chains involve feeding relationships among organisms C. shorter food…
A. parasitism B. commensalism C. mutualism D. symbiosis E. predation Correct Answer: Option A - parasitism
A. xylem B. cambium C. phloem D. parenchyma E. sclerenchyma Correct Answer: Option C - phloem
A. an achene B. a capsule C. a follicle D. a legume E. a nut Correct Answer: Option B -…
A. transfer of radiant energy which reduces a co-factor B. absorption of radiant energy by chlorophyll C. utilization of the…
A. villi are well supplied with blood and lymph vessels B. villi are numerous and thin-walled C. small intestine has…
A. consumers B. decomposers C. carnivores D. producers E. herbivores Correct Answer: Option D - producers