A) chlorophyII B) Cellulose cell wall C) large vacuole D) Cell membrane
A) expand and then burst B) decrease in size and become flaccid C) expand and then shrink D) enlarge and then become turgid
A) gametes of parents have different genetic composition B) greater amount of DNA is involved in sexual reproduction C) genetic materials come from parents of two different species D) sexual reproduction is a lengthy process
A) pectoral girdle B) upper arm C) pelvic girdle D) lower arm
A) pancreas B) liver C) heart D) testes
A) mesenteric artery B) hepatic portal vein C) hepatic artery D) hepatic vein
A) insulin B) thyroxine C) adrenaline D) parathormore
A) pituitary gland B) hypothalamus C) adrenal gland D) skin
A) two B) one C) four D) three
A) thyroxine B) adrenaline C) insulin D) parathormore
A) grasshopper B) cockroach C) locust D) butterfly
A) there is an increase in substrate concentration B) the atmospheric pressure is altered C) the ph of the medium is altered D) the optimum temperature is attained
A) wind B) water C) sunlight D) carbon (IV) oxide
A) by synthesizing simple substances using energy B) from other organisms in exchange for some products C) in a synthesized form, from other living organisms D) by utilizing its store energy
A) ormation of two molecules of phosphoglyceric acid B) breaking down of ATP molecules to produce energy C) splitting of water molecules to form hydrogen ions D) reduction of carbon (IV) oxide to form carbohydrate
A) venus flytrap B) Utricularia C) gloriosa D) pitcher plant
A) community B) population C) succession D) habitat
A) grasshoppers would increase B) grasses available to grasshoppers C) hawks would increase D) grasshoppers would decrease
A) no scales B) fore limbs C) no gills D) lateral line
A) succulent stem B) heavily lignified tissue C) finely divided leaves D) multiple epidermis
A) parasitism B) predation C) commensalism D) mutualism
A) reproducing profusely in an area B) dangerous to humans and attacking other animals C) likely to disappear from the surface of the earth D) dangerous to humans and attacking other animals
A) Eating uncooked meatf/fdysentery, cholera. food poisoning. B) Living near dirty gutter / Lung cancer, syphilis, river blindness C) Having multiple sexual partners / liver cirrhosis, syphilis, AIDS D) Smoking cigarette / Liver cirrhosis. Lung cancer, AIDS
A) discouraging poaching B) mulching C) crop rotation D) use of cover crops
A) soil B) water C) forest D) garbage
A) Bi-valents are not formed B) chiasmata are not formed C) It does not lead to variation D) Four daughter cells are produced
A) facilitate dissolution of clot B) lead to agglutination C) have no effect on blood composition D) change the blood group
A) produce numerous seeds within a short time B) have a relatively short life cycle C) have a small number of chromosomes D) produce one generation in a large period
A) it is caused by recessive genes B) two sickle cell carrier parents may have a sickling child C) it is caused by sex-linked genes D) it is more common in males than in females
A) Bb B) BBbb C) BB D) bb
A) it will hinder her from having blood transfusion from her husband B) it may affect her childbearing ability C) it will result in sickness and probably death of the offspring D) her children may all resemble her husband
A) butterfly B) cockroach C) housefly D) termite
A) climate change B) gene mutation C) change of habitat D) reduction in population
A) well developed acquired characters are inheritable B) survivors in a competitive community must have inherited useful traits C) frequently used organs become well developed while the ones not used become vestigial D) great changes in the environment result in corresponding changes in species ![]()
A) longitudinal and transverse B) transverse and cross C) cross and transverse D) transverse and longitudinal ![]()
A) gamete formation B) sexual reproduction C) asexual reproduction D) bud formation ![]()
A) cell B) system C) organ D) tissue ![]()
A) Rhizopoda B) Euglenophyta C) Rhodophyta D) Ciliophora ![]()
A) IV B) III C) II D) I ![]()
A) Excretion B) Reproduction C) Locomotion D) Respiration ![]()
A) myopia B) astigmatism C) presbyopia D) hypermetropia
A) cylindrical lens B) bifocal lens C) concave lens D) convex lens ![]()
A) keep cotton wool around the seedling to make it dry B) aerate the solution daily C) cover the culture vessel with opaque paper D) use a non-green plant for the experiment
A) inadequate supply of water to the plant B) excess supply of nutrients to the plant C) algal growth in the solution that used up the nutrients D) inability of the plant to make food due to lack of sunlight
A) used as a paddle for swimming B) used as a bait to catch fish in water C) used for killing prey in water D) effective in scratching the soil for food ![]()
A) inheritance B) variation C) courtship behaviour D) cell theory
A) nucleus and cell wall B) cytoplasm and nucleus C) cytoplasm and vacuole D) cell wall and vacuole
A) I B) IV C) III D) II
A) I B) II C) III D) IV
A) Paramecium B) Euglena C) Spirogyra D) Volvox
A) plasma membrane B) mitochondrion C) endoplasmic reticulum D) nuclear membrane
A) pig's bladder B) Yam tuber C) Sheet of cellophane D) Unripe pawpaw fruit
A) The yeast cells carried out photosynthesis while the mould did not B) Photosynthesis does not take place in the absence of oxygen C) Respiration can take place in yeast cells in the absence of oxygen D) Respiration does not occur in the mould
A) Xylem B) Parenchyma C) Phloem D) Collenchyma
A) air sac B) lung C) trachea D) lung book
A) urine B) urea C) ammonia D) uric acid
A) medulla B) bladder C) pelvis D) capsule
A) secretion of hormones B) transportation by blood to target organ C) release of secretion into ducts D) having specific effect
A) cerebrum B) optic nerves C) cerebellum D) spinal cord
A) lens become more concave B) lens gets a longer focal length C) suspensory ligament becomes tight D) lens become more convex |