Question 1Which of the following is the youngest plant tissue?A.meristernB.phloemC.epidermisD.xylemObjective Show full explanation
Question 2Viruses differ from all forms of life because they.......A.have a thick cell wallB.feed on waste products of other organismsC.cause infectious diseasesD.require other living cells to multiplyObjective Show full explanation
Question 3The endoplasm cells found in hydra are used forA.reproductionB.offence and defence C.locomotion and nutritionD.food collectionObjective Show full explanation
Question 4Annelids differ from nematodes in that they......A.exhibit bilateral symmetryB.are triploblawsticC.are metamerically segmentedD.posess complete digestive systemObjective Show full explanation
Question 5Which of the following perform similar functions?A.ascospores and ascocarpB.antherozoids and rhizoidsC.sorus and indusiumD.strobili and inflorenscenceObjective Show full explanation
Question 6In ferns the sporophyte ......A.develops from haploid zygoteB.produce sporesC.is haploid and dependent on the gametophyteD.is haploid and independent of the gametophyteObjective Show full explanation
Question 7The group of insects that undergoes complete metamorphosis is .......A.house flies, beetles and cockroachesB.cockroaches, grasshoppers and beesC.house flies,beetles and butter fliesD.aphids, grasshoppers and butterfliesObjective Show full explanation
Question 8The nitrogenous substance that is excreted by birds in order to conserve water is ........A.ammoniaB.ureaC.uric acidD.nitric acidObjective Show full explanation
Question 9In mammals, the exchange of nutrients and metabolic products occurs in the .......A.lymphB.lungsC.heartD.liverObjective Show full explanation
Question 10The part of the stomach nearer the gullet is called the ...........A.epiglottisB.cardiac sphinccterC.duodenumD.pyloric sphincterObjective Show full explanation