Question 1Which of the following features enables the tapeworm to live successfully in the small intestine of human? A.possession of flame cells for excretionB.A long neck for forming proglottidsC.Hooks and suckers for strong attachmentD.The absence of segmentation appendagesObjective Show full explanation
Question 2If a piece of abandoned farmland through a series of floral and fauna changes and becomes an established permanent plant and animal population, it could be said to have undergone A.EvolutionB.SuccessionC.TransformationD.CompetitionObjective Show full explanation
Question 3Which of these physiological variation is sex-linked? .. A.AlbinismB.Blood groupsC.Sickle cell anaemiaD.Haemophilic conditionObjective Show full explanation
Question 4The ability of some individuals to taste phenylthiocarbamide (PTC) is a A.Morphological adaptationB.Morphological variationC.Physiological adaptationD.Physiological variationObjective Show full explanation
Question 5The theory of evolution by natural selection was first put forward by A.AristotleB.DarwinC.LinnaeusD.BoyleObjective Show full explanation
Question 6Which of the following statements is correct about the chromosomes in the gametes? At the end of the second meiotic division ... A.Each game contains only paternal hereditary informationB.Chromosomes contain a random mixture of parental and maternal chromosomesC.Chromosomes in the four gamete cells are diploid in numberD.Chromosomes contain only maternal hereditary informationObjective Show full explanation
Question 7Which of the following traits in humans can be affected by environmental factors? A.Skin colourB.Eye colourC.BaldnessD.Tongue-rollingObjective Show full explanation
Question 8The green plants mode of nutrition isA.Autotrophs B.producers C.photosynthesisD.autotrophicObjective Show full explanation
Question 9The body plan relatively simple, consisting of two layers of cell, (ectoderm & endoderm) is known as A.diploblastic B.radial symmetry C.acellularD.triploblasticObjective Show full explanation
Question 10The organisms that undergo chemosynthesis are known asA.heterotrophs B.metabolitesC.consumersD.autotrophsObjective Show full explanation
Question 11Polymorphism in cnidarians results in two basic body types which areA.poly and monyB.polyps and medusa C.medusa and radialD.polyps and tribloplasticObjective Show full explanation
Question 12The phylum platyhelminthes is divided into the following classes exceptA.tubelleriaB.nematode C.trematodeD.cestodaObjective Show full explanation
Question 13The genetic make-up of an organism is calledA.phenotype B.homozygous C.genotypeD.heterozygous .Objective Show full explanation
Question 14Study of one pair of contrasting character at a time refers toA.first filial generation B.second filial generation C.dihybrid crossD.monohybrid crossObjective Show full explanation
Question 15A genetic cross whereby one of the first filial generation (F1) offspring is crossed with one of the Individual parent is A.test cross B.monohybrid cross C.back crossD.dihybrid crossObjective Show full explanation