Question 2The ability of an organisms to live successfully in an environment is known asA.succession B.resistance C.adaptation D.competitionObjective Show full explanation
Question 3The following are connected with the movement of a reflex action1.central nervous system2.muscle3.skin4.sensory nerve5.motor nerveA.1 – 2 – 3 – 4 – 5 B.2 – 1 – 4 – 5 – 3 C.3 – 4 – 1 – 2 – 5 D.3 – 4 – 1 – 5 – 2Objective Show full explanation
Question 4Which of the following statements is not true of symbiosis?A.symbionts must be living B.it is an association of give and takeC.the association may involve two plants D.association between two similar speciesObjective Show full explanation
Question 5The deficiency of Vitamin D leads to A.scurvy B.pellagra C.rickets D.beriberiObjective Show full explanation
Question 6Hepatic portal vein is unique because itA.carries deoxygenated bloodB.begins and ends with capillaries C.is the largest vein in mammalsD.carries digested foodObjective Show full explanation
Question 7The thoracic vertebrae of a mammal is characterized by the A.vertebraterial canalB.prominent neutral archC.prominent neutral processD.prominent neutral spineObjective Show full explanation
Question 8 A grasshopper respires by means of its A.lung-bookB.gillsC.lungsD.tracheal tubesObjective Show full explanation
Question 9The inactive state exhibited by an animal during hot dry seasons is termedA.aestivationB.dormancy C.restingD.hibernationObjective Show full explanation
Question 10Auxins are produced in the A.petioles of leaves B.parenchyma of roots and shootsC.epidermis of roots and shootsD.apical regions of roots and shootsObjective Show full explanation