Question 1The cytoplasm in unicellular organism is made up ofA.ectoplasmB.ectoplasm and nucleusC.endoplasm and nucleusD.protoplasm and nucleusObjective Show full explanation
Question 2Bryophytes are different from flowering plants because theyA.have no vascular tissuesB.live in moist habitatsC.are small plantsD.reproduce sexuallyObjective Show full explanation
Question 3The pair of organisms that belong to the phylum coelenterate isA.hydra and planariaB.sea anemones and leechesC.jellyfish and obeliaD.corals and sea urchinObjective Show full explanation
Question 4Most insects communicate by means of a mixture of chemicals known asA.pheromoneB.testoroneC.progesteroneD.oxytocinObjective Show full explanation
Question 5An organism with a two chambered heart isA.manB.fishC.toadD.birdObjective Show full explanation
Question 6Among the vertebrates, mammals are generally the most successful because theyA.have a well-developed heartB.are warm bloodedC.are capable of internal fertilizationD.have a well-developed brainObjective Show full explanation
Question 7The layer of epithelial tissue in the intestine isA.squamousB.cuboidalC.columnarD.ciliatedObjective Show full explanation
Question 8The most convincing evidence of evolution from embryology is the presence ofA.notochordB.bloodC.headD.tailObjective Show full explanation
Question 9An example of a vestigial structure in the human body is theA.diaphragmB.appendixC.heartD.small intestineObjective Show full explanation
Question 10The part of the brain that coordinates muscular movement and maintains body balance is theA.medulla oblongataB.cerebellumC.cerebrumD.thalamusObjective Show full explanation
Question 11Secondary growth in plants lead to an increase inA.the number of vascular bundlesB.girthC.heightD.the number of branches Objective Show full explanation
Question 12When the concentration of solutions in a cell and its surrounding environment is equal, this condition is said to beA.hypertonicB.supertonicC.hypotonicD.isotonicObjective Show full explanation
Question 13The liquid that serves as a lubricant to the mammalian joints is theA.synovial fluidB.amniotic fluidC.spinal fluidD.seminal fluidObjective Show full explanation
Question 14When seedlings are transplanted during hot afternoons, they wilt becauseA.the leaves are unable to withstand high temperaturesB.they lack sufficient solutes for turgidityC.the rate of water loss exceeds uptakeD.the roots hairs are easily brokenObjective Show full explanation
Question 15Which of the following is an autotrophic mode of nutrition?A.commensalismB.saprophytismC.parasitismD.chemosynthesisObjective Show full explanation
Question 16The excretory products in plants includeA.tannin, anthocyanin and resinB.gum, uric acid and mucilageC.resin, mucilage and ureaD.anthocyanin, sweat and tanninObjective Show full explanation
Question 17The structure that forms the pericarp of a fruit is theA.ovaryB.ovuleC.ovary wallD.ovule integumentObjective Show full explanation
Question 18When a fly lands on the leaf of mimosa plant, the type of movement the plants exhibits isA.tacticB.nasticC.involuntaryD.tropicObjective Show full explanation
Question 19Muscle fatigue during vigorous exercise occurs as a result of theA.underproduction of lactic acidB.insufficient supply of oxygen to the musclesC.total absence of oxygen in the musclesD.excessive use of the musclesObjective Show full explanation
Question 20Which of the following provides the mammalian embryo with nutrients before the formation of the placenta?A.uterusB.AmnionC.ovaryD.oviductObjective Show full explanation
Question 21The essential parts of a flower consist of theA.anther and the filamentsB.petals and gynoeciumC.androecium and the gynoeciumD.style and stigmaObjective Show full explanation
Question 22The kidney is connected to the bladder by theA.cortexB.urethraC.urinary tubuleD.ureterObjective Show full explanation