A.

II→I→IV→→III→V

B.

V→IV→III→II→I

C.

IV→III→II→V→I

D.

III→II→IV→V→I

A.

maggot

B.

mosquito larva

C.

earthworm

D.

caterpillar

A.

Guard cells lack chloroplast

B.

Mangifera is autotrophic

C.

Stomata opens when guard cells have a high osmotic pressure

D.

Terrestrial plants can exchange gases through lenticles

A.

Fish

B.

Mammals

C.

Amphibian

D.

Reptiles

A.

Maltose and fatty acids

B.

Amino acids and glucose

C.

fatty acids and fructose

D.

fatty acids and glycerol

A.

Right auricle and right ventricle

B.

Left auricle and left - ventricle

C.

Right auricle and left auricle

D.

Left auricle and right ventricle

A.

Crop

B.

Gizzard

C.

Cloak

D.

Rectum

A.

calcium

B.

phosphorous

C.

zinc

D.

nitrogen

A.

they are proteins

B.

are sensitive to hydrogen ion

C.

they are activated by coenzyme

D.

they can withstand high temperatures

A.

tendons

B.

. sutures

C.

membranes

D.

ligaments

A.

alcohol

B.

carbon dioxide

C.

ethanol

D.

energy

A.

insufficient glucose

B.

insufficient oxygen

C.

excess carbondioxide

D.

excess protein

A.

Lizard

B.

Rat

C.

Earthworm

D.

Grasshoppers

A.

mouth → operculum → gills

B.

mouth →gills →operculum

C.

gills → operculum →mouth

D.

operculum -gills →mouth

A.

pharynx of humans

B.

scales of fish

C.

spiracle of insects

D.

trachea of toads

A.

Meristem

B.

Sclerenchyma

C.

phloem

D.

pith

A.

a fertilized ovary

B.

a fertilized ovary and other floral part

C.

a fertilized ovary and calyx

D.

a fertilized ovary and fleshy receptacle

A.

the androecium is found on one plant

B.

the gynoecium is monocarpus

C.

it produces essential organs

D.

the gynoecium and androecium are on the same plant

A.

epigyny

B.

protandry

C.

protogyny

D.

perigyny

A.

bulbs

B.

rhizomes

C.

runners

D.

creepers

A.

decomposer

B.

competition

C.

producer

D.

consumer

A.

the ability to roll the tongue

B.

height

C.

fingerprints

D.

weight

A.

clay

B.

sand

C.

loamy soil

D.

silt

A.

Komodo

B.

Ectotherms

C.

Monotremes

D.

Marsupials

A.

liver and kidney

B.

kidney and gall bladder

C.

liver and gall bladder

D.

liver and urinary bladder

A.

concave, and convex

B.

concave and bifocal

C.

convex and bifocal

D.

concave and bifocal

A.

O

B.

A

C.

B

D.

AB

A.

nitrates

B.

nitrites

C.

nitrous oxide

D.

nitric acid

A.

iron

B.

lead

C.

aluminium

D.

carbon

A.

a parasite

B.

a scavenger

C.

a saprophyte

D.

an epiphyte

A.

they are micro-organism

B.

they are the causative organisms of some diseases

C.

they can be seen with an ordinary light microscope

D.

they are smaller than bacteria.

A.

reproduction

B.

nutrition

C.

irritability

D.

mobility

A.

movement

B.

defence

C.

excretion

D.

reproduction

A.

monocotyledons and dicotyledons

B.

tracheophytes and ferns

C.

angiosperms and gymnosperms

D.

tracheophytes and bryophytes

A.

hook

B.

sucker

C.

scolex 

D.

proglottic

A.

termite

B.

maggot

C.

caterpillar

D.

earthworm

A.

Amoeba

B.

Roundworm

C.

hydra

D.

Earthworm

A.

radula

B.

ctenidium

C.

pneumostome

D.

mantle

A.

Butterfly

B.

Bee

C.

Mosquito

D.

grasshopper

A.

acquired traits are heritable

B.

acquired traits are seldom formed

C.

traits are acquired through the use of body parts

D.

traits are acquired through disuse of body parts.

A.

more rapid elongation of the hypocotyl than the epicotyl

B.

more rapid elongation of the epicotyl than the hypocotyl

C.

equal growth rate of both the hypocotyl and epicotyl

D.

lack of growth of the hypocotyl

A.

organic matter

B.

glass

C.

plastics

D.

metal scraps

A.

25%

B.

50%

C.

75%

D.

100%

A.

evaporation of water in the environment

B.

evaporation and condensation of water in the environment

C.

condensation of water in the environment

D.

transpiration and respiration in plants

A.

terrestrial mode of life

B.

possession of paired limbs

C.

a false foot

D.

radial symmetry

A.

sigmoid

B.

population explosion

C.

rapid growth

D.

exponential growth

A.

provide birds with plenty of food

B.

ensure their perpetuation despite predatory pressure

C.

search for a favourable place to breed

D.

ensure that every individual gets a mate.

A.

Burning of fossil fuel

B.

construction of dams

C.

use of electricity

D.

exploration of space

A.

Gringer printing

B.

blood group typing

C.

DNA analysis

D.

tongue rolling

A.

Sperm cell

B.

white blood cell

C.

Egg cell

D.

red blood cell

A.

conjugation

B.

binary fission

C.

grafting

D.

Budding

A.

gulnea savanna _ sudan savanna_ tropical rain forest_ sahel savanna_eetuarine

B.

estuarine_tripical rainforest_guinea savanna _ sahel_ savanna

C.

sahel savanna_ tropical_rain forest_ estuarine _guinea savanna

D.

sahel savanna_sudan savanna_guinea savanna _tropical rain forest_estuarine

A.

nature of substratum

B.

high salinity

C.

high temperature

D.

low pH

A.

material

B.

trypanosomiasis

C.

onchocerciasis

D.

yellow fever

A.

clearing farms a by burning

B.

planting one crop type

C.

adding inorganic fertilizers yearly

D.

crop rotation and shifting cultivation

A.

lung fish

B.

shark

C.

cat fish

D.

croaker

A.

presence of wings, possession of a small head and large thorax

B.

presence of wings, possession of a large thorax and a small head

C.

absence of wings, possession off strong mandibles and a large head

D.

absence of wings, possession of big head and the absence of mandible.

A.

Urinary bladder and kidney

B.

liver

C.

pancreas

D.

kidney and malphigian tubule

A.

disperse the population

B.

feed the young

C.

participate in swarming

D.

protect the young

A.

competition

B.

temperature

C.

light

D.

pH

A.

disease

B.

sudden flood

C.

drought

D.

fire outbreak

A.

budding

B.

sexual

C.

vegatative

D.

asexual

A.

public symphysis

B.

ilium

C.

pubis

D.

obturator foramen

A.

ileum

B.

colon

C.

esophagus

D.

duodenum

A.

blood group test

B.

behavioural traits test

C.

DNA analysis

D.

RNA analysis

A.

combination of water molecules

B.

breakdown of water molecules

C.

reduction of carbon (IV) oxide

D.

reduction of oxygen by hydrogen

A.

tactic movement

B.

phototropism

C.

geotropism

D.

nastic movement

A.

pH

B.

oxygen

C.

light

D.

temperature

A.

attract mates

B.

frighten enemies

C.

catch insects

D.

defend their territory

A.

They are not tasty as others produced by conventional means

B.

they are usually costlier than others produced by conventional means

C.

their efforts on human consumers is not yet fully understood

D.

the technology can be applied only in developed countries

A.

attraction

B.

defence

C.

display

D.

attack

A.

veins

B.

right auricle

C.

arteries

D.

left ventricle

A.

III

B.

IV

C.

I

D.

II

A.

flight enemies

B.

remain undetected

C.

warn enemies

D.

attract mates

A.

order

B.

family

C.

class

D.

species

A.

a constant change in the appearance of the commodities

B.

a stable composition of plant and animal species

C.

rapid changes in the plant and animal species

D.

different species that are constantly changing

A.

urethra

B.

ureter

C.

bladder

D.

seminal vesicle

A.

Embryology

B.

Comparative anatomy

C.

comparative physiology

D.

all of the above

A.

Hussain in endowed with genes for shortness and thinness

B.

They are raised in different environments

C.

they have dissimilar genotypes

D.

Hassan inherits genes for tallness and fatness from the father.

A.

alternation of generation

B.

vegetative reproduction

C.

sexual reproduction

D.

sexual reproduction

A.

comparative anatomy

B.

biochemical similarities

C.

molecular records

D.

fossil records

A.

IV

B.

III

C.

I

D.

II

A.

earthworms

B.

man

C.

rodents

D.

microbes

A.

denitrifying bacteria

B.

saprophytic bacteria

C.

Rhizobium

D.

nitrosomonas

A.

camouflage

B.

chemical defence

C.

physical defence

D.

mimicry

A.

Drosophila melanogaster

B.

prominent fingernails

C.

facial hairs

D.

enlarged breast

A.

tests fly

B.

black

C.

mosquito

D.

butterfly

A.

sympathetic and parasympathetic nervous systems

B.

peripheral and central nervous systems

C.

peripheral nervous system only

D.

central nervous system only

A.

protozoans

B.

roots of higher plants

C.

bacteria

D.

filamentous algae

A.

biting and chewing

B.

chewing and sucking

C.

chewing

D.

Sucking

A.

Chalaza

B.

Yolk

C.

albumen

D.

embryo

A.

chloroplast

B.

ribosome

C.

mitochondrion

D.

nuclear envelope

A.

pileus

B.

Mycelium

C.

basidium

D.

Stipe

A.

Xylem

B.

epidermis

C.

phloem

D.

parench

A.

mottled colours on moths that rest o lichens

B.

bright colour of an insect pollinated flower

C.

green colour of a plant

D.

bright marks on a poisonous tropical frog on variegated leaves

A.

arthropods and nematodes

B.

Pisces and amphibians

C.

annelids and molluscs

D.

coelenterates and platyghelminthes

A.

ureter

B.

vas deferens

C.

urethra

D.

Testes.

A.

ethylene

B.

indole acetic acid

C.

gibberellin

D.

cytokinin

A.

limestone

B.

coral

C.

coal

D.

firewood

A.

dumping

B.

recycling

C.

incineration

D.

Burying

A.

family

B.

order

C.

kingdom

D.

species

A.

light

B.

humidity

C.

wind

D.

PH.

A.

ATG

B.

TAG

C.

GAT

D.

AGT

A.

aestivation

B.

dormancy

C.

resting

D.

Hibernation

A.

75%

B.

50%

C.

25%

D.

100%

A.

reduction of carbon (IV) oxides to organic compounds

B.

release of oxygen and the splitting of water

C.

photolysis of water and the production of starch

D.

splitting of water into hydrogen ions.

A.

seed sowing

B.

layering

C.

grafting

D.

stem cuttings

A.

myelin sheath

B.

dendrites

C.

axon

D.

node of Ranvier

A.

XbY

B.

XBXB

C.

XBY

D.

XBXb

A.

cytolysis

B.

cleavage

C.

mitosis

D.

Meiosis

A.

guava

B.

maize grain

C.

coconut

D.

tomato

A.

disuse of body part cannot weaken the part

B.

disused part is dropped off in the offspring

C.

acquired traits cannot be passed onto the offspring

D.

traits cannot be acquired through constant use of body parts

A.

Entamoeba

B.

Salmonella

C.

Shigella

D.

Escherichia

A.

Paramecium

B.

Rhizopus

C.

Spirogyra

D.

Amoeba

A.

sandy

B.

Alluvial

C.

loamy

D.

clayey

A.

prothallus

B.

Gametangium

C.

saprophyte

D.

gametophyte

A.

predation

B.

symbiosis

C.

natural selection

D.

geographical isolation

A.

produce precise and short –lived effects

B.

Involve the use of chemical substances

C.

transmit very fast impulses

D.

produce widespread effects.

A.

fish

B.

Mammal

C.

Amphibian

D.

Reptile

A.

physiological

B.

discontinuous

C.

morphological

D.

biochemical

A.

easily reach their reproduction age

B.

with favoured trait become dominant

C.

are better adapted to changes

D.

are easily recognized by mates

A.

alleles separate predictably

B.

alleles segregate independently

C.

chromosomes segregate independently

D.

alleles combine randomly

A.

parenchyma

B.

Pholem

C.

phypodermis

D.

pericyle

A.

stomach

B.

Liver

C.

Liver

D.

spleen

A.

succulent stems

B.

rapid growth

C.

fibrous roots

D.

perennating organs

A.

hepatic portal vein

B.

pulmonary vein

C.

renal vein

D.

measenteric vein

A.

xxy and xyy

B.

xx and xyy

C.

xx and xy

D.

xy and xxy

A.

Vitamin E

B.

Vitamin K

C.

Vitamin C

D.

Vitamin A

A.

biochemical similarities

B.

C.

physiological records

D.

molecular records

A.

long transverse processes

B.

zygaphphysis

C.

vertebraterial canal

D.

large centrum

A.

break the harmattan wind

B.

beautify the region

C.

check desert encroachment

D.

provide wood fuel

A.

left auricle

B.

right auricle

C.

left ventricle

D.

right ventricle

A.

Urea

B.

carbon (IV)oxides

C.

mineral salt

D.

water

A.

sebaceous gland

B.

sweat gland

C.

hair follicle

D.

hair pailla

A.

increase in the volume of the thoracic cavity

B.

relaxation of the diaphragm

C.

upward movement of the ribs

D.

contraction intercostal muscles

A.

transport genetic material out of the cell

B.

transport organic materials in and out of the cell

C.

provide attachment for ribosomal granules

D.

conduct ions and out of the cell

A.

Gall blader

B.

Lieum

C.

Pancreas

D.

kidney

A.

wets the soil for proper germination

B.

protects the seed from desiccation

C.

activates the enzymes

D.

promotes aerobic respiration

A.

urethra

B.

loop of henle

C.

ureater

D.

Bowman’s capsule

A.

cortex

B.

stele

C.

xylem

D.

phloem

A.

crop

B.

Beak

C.

Gizzard

D.

tongue

A.

Pawpaw X will become turgid

B.

Both will increase in size

C.

pawpaw Y will become turgid

D.

Both will decrease in size

A.

ileum caecum large intestine rectum

B.

ileum colon caecum rectum

C.

large intestine ileum caecum rectum

D.

colon caeum ileum rectum

A.

platyhelminthes

B.

nematodes

C.

coelentrates

D.

arthropods

A.

Schistosomiasis

B.

onchoerciasis

C.

poliomyelitis

D.

salmonellosis

A.

oxygen

B.

carbon(IV) oxide

C.

ammonia

D.

alkalinity

A.

mutation

B.

gene flow

C.

genetic drift

D.

natural selection

A.

6.25%

B.

10. 36%

C.

14.28%

D.

43.28%

A.

contains less amount of carbon (IV) oxide

B.

is usually lower in temperature

C.

often has more oxygen

D.

usually has more water vapour

A.

Staphylococci

B.

clostridia

C.

streptococci

D.

Bacilli

A.

hormonal and temperature changes

B.

electrical and ionic changes

C.

hormonal changes

D.

electrostatic changes

A.

corpus luteum

B.

ovarian funnel

C.

Graafian follicle

D.

fallopian tube

A.

monkeys

B.

human females

C.

human males

D.

chimpanzees

A.

phosphorous

B.

calcium

C.

nitrogen

D.

Zinc

A.

mesophytes

B.

epiphtes

C.

hydrophytes

D.

Xerophytes

A.

plasmalemma

B.

chloroplast

C.

cell wall

D.

nucleus

A.

ureter

B.

Pelvis

C.

cortex

D.

medulla

A.

loss of the organ of movement

B.

presence of claws

C.

loss of the central nervous system

D.

presence of piercing mouthparts

A.

becomes faccid

B.

contains cystals

C.

becomes turgid

D.

is pigmented

A.

scooping and sieving food

B.

catching and gasping food

C.

picking and cracking food

D.

boring and sucking food

A.

inbreeding

B.

backcrossing

C.

sexual reproduction

D.

Gene dominance

A.

locomotion

B.

irritability

C.

increase in biomass

D.

increase in size

A.

Mammalian

B.

Aves

C.

Annelida

D.

Insecta

A.

long tail

B.

scaly skin

C.

sharp claw

D.

amniotic egg

A.

stigma

B.

filament

C.

anther

D.

replace

A.

The causal fin

B.

the pectoral fin

C.

the anal fin

D.

The dorsal fin

A.

the loss of water absorbing ability of the soil

B.

the loss of biological diversity

C.

a decrease in animal population

D.

an increase in soil fertility

A.

dessciation

B.

floatation

C.

salinity

D.

humidity

A.

hydra viridis and zoochlorellae

B.

human and lice

C.

Shark and Remora fish

D.

Bread and Rhizopus stolonifer

A.

tidal zone

B.

interidal zone

C.

littoral zone

D.

euphotic zone

A.

possession of unicellular structures

B.

Development of flowers

C.

dispersal of spores

D.

Development of secondary thickening

A.

Pellicle

B.

pigment sport

C.

large vacuole

D.

gullet

A.

possess exoskeletons

B.

survive in various environmental conditions

C.

have wings for flight

D.

possess the ability to change their forms

A.

Thermometer

B.

Hygrometer

C.

Anemometer

D.

Hydrometer

A.

placenta

B.

liver

C.

umbilical chord

D.

uterine wall

A.

(a)okro

B.

tomato

C.

bean

D.

orange

A.

evolution

B.

adaptation

C.

variation

D.

heredity

A.

edges mosquito

B.

anopheles mosquito

C.

tsetse fly

D.

blackly

A.

birth rate

B.

disease rate

C.

drought

D.

water scarcity

A.

osmosis and diffusion

B.

active transport and osmosis

C.

ultra filtration and selective re-absorption

D.

active transport and cytoplasmic streaming

A.

sex linked

B.

homozygous

C.

dominant

D.

recessive

A.

pericycle

B.

cortex

C.

endodermis

D.

Parenchyma

A.

absorbing inorganic ions from the soil

B.

protecting it from infection

C.

helping it to utilize atmospheric nitrogen

D.

serving as a growth regulator

A.

blunt

B.

curved

C.

hooked

D.

sharp

A.

provide abundant food for birds and other animals during the early rains

B.

ensure cross breeding between members of one colony and another

C.

expel the reproductive so as to provide enough food for other members

D.

disperse the reproductive in order to establish new colonies

A.

reducing sugar

B.

fatty acid

C.

sucrose

D.

amino acid

A.

cell wall

B.

lignin

C.

cellulose

D.

chitia

A.

blood grouping

B.

tongue rolling

C.

behavioural patterns

D.

colour variation

A.

pisces

B.

Reptilia

C.

Amphibia

D.

Mammalia

A.

mangrove swamps and the Sahel savanna

B.

rainforests and the Sudan savanna

C.

deserts and the Sudan savanna

D.

rainforests and the desert.

A.

incomplete dominance

B.

mutation

C.

linkage

D.

co dominance

A.

it involves the asexual multiplication of the tissues of the original organisms

B.

the clone is similar to but not exactly like the original organism

C.

Only one cell of the original organism is needed to initiate the process

D.

it is welcomed as an ethically and morally sound science

A.

consumer

B.

decomposer

C.

producer

D.

primary consumer

A.

disruptive colouration

B.

continuous variation

C.

divergent Evolution

D.

convergent evolution

A.

van deferens

B.

urethra

C.

epididymis

D.

seminiferous tubules

A.

I, II and III , IV

B.

I, IV, III, II

C.

II, III, IV, I

D.

IV, III, II, I

A.

skull , ribs, vertebral column and breast bone

B.

skull humerus, vertebral column and ribs

C.

breastbone, clavicle, rids and vertebral column

D.

femur, sternum, ulnae and skull

A.

Y-chromostome

B.

X and Y chromosomes

C.

Homologens chromosomes

D.

X-Chromosome

A.

rain forest

B.

Guinea savanna

C.

Sudan savanna

D.

montane forest

A.

4

B.

5

C.

2

D.

3

A.

copper

B.

potassium

C.

phosphorous

D.

sodium

A.

mitochondria

B.

gastric juice

C.

plasma

D.

cytoplasm

A.

Darwin’s theory

B.

Lamarck’s theory

C.

genetic drift

D.

gene flow

A.

mosses

B.

lichens

C.

ferns

D.

Algae

A.

Fish

B.

Snail

C.

Mouse

D.

insect

A.

all animals rely on food produced by plants

B.

they utilize respiratory wastes of each other

C.

they are neighbours

D.

they are rivals

A.

xanthophyl

B.

chromatophores

C.

chlorophyll

D.

mechanic

A.

Agama sp

B.

Bufo sp

C.

spirogyra sp

D.

Tilapia sp

A.

sweat glands

B.

sebaceous glands

C.

fatty cells

D.

granular layer

A.

gametophyte

B.

prothallus

C.

sporophyte

D.

antheridium

A.

autotrophic

B.

saprophytic

C.

holozoic

D.

chemosynthetic

A.

Touch

B.

Light intensity

C.

Chemical substances

D.

gravity

A.

liver

B.

duodenum

C.

small intestine

D.

pancreas

A.

ready for a fight

B.

protecting itself from predators

C.

protecting its mate from predator

D.

courting a female

A.

Convoluted tubule_ glomerulus_Henle’s loop_ Bowman’s capsule_collecting tubule

B.

Glomerulus_Bowman’s capsule_convoluted tuble_ Henle’s loop_collecting tubule

C.

convoluted tubule_ Bowman’s capsule_Henle’s loop _ glomerulus_collecting tubule

D.

Glomerulus_Bowman’s capsule_convoluted tubule_ Henle’s loop_convoluted tubule_collecting tubule

A.

dominance

B.

recessiveness

C.

codominance

D.

Incomplete dominance

A.

alcohol

B.

acid

C.

oxygen

D.

water

A.

angiosperms and gymnosperms

B.

monocotyledons and dicotyledons

C.

thallophyes and pbryophytes

D.

Tracheophytes and ferns

A.

viruses

B.

algae

C.

Monera

D.

Fungi

A.

lipases

B.

hydrolases

C.

amylases

D.

peptidases

A.

nucleus

B.

nucleolus

C.

cytoplasm

D.

Nucleoplasm

A.

thallophytes

B.

pteridophytes

C.

monocotyledons

D.

dicotyledons

A.

scooping and sieving food

B.

catching and gasping food

C.

picking and cracking food

D.

boring and sucking food

A.

have teeth

B.

are warm blooded

C.

haelungs

D.

have sebaceous glands

A.

physiological

B.

discontinuous

C.

morphological

D.

biochemical

A.

thallophytes

B.

pteridophytes

C.

monocotyledons

D.

dicotyledons

A.

Urinary bladder and kidney

B.

liver

C.

pancreas

D.

kidney and malphigian tubule

A.

Gringer printing

B.

blood group typing

C.

DNA analysis

D.

tongue rolling

A.

divergent evolution

B.

co evolution

C.

continuous variation

D.

convergent evolution

A.

plasmalemma

B.

chloroplast

C.

cell wall

D.

nucleus

A.

The cytoplasm fills up the entire cell space

B.

The nucleus is pushed to the centre of the cell

C.

the cell wall is made up of cellulose

D.

The nucleus is small and irregular in shape

A.

ureter

B.

vas deferens

C.

urethra

D.

Testes.

A.

stomach

B.

Liver

C.

Liver

D.

spleen

A.

25%

B.

50%

C.

75%

D.

100%

A.

non heritable

B.

sex linked

C.

a recessive trait

D.

a dominant trait

A.

sweat glands

B.

sebaceous glands

C.

fatty cells

D.

granular layer

A.

public symphysis

B.

ilium

C.

pubis

D.

obturator foramen

A.

melanin and haemoglobin

B.

chlorophyll and carotenoids

C.

carotenoids and haemoglobin

D.

chloroplasts and cytochromes

A.

possession of wings by bird and bats

B.

cold-bloodedness of fishes, amphibians and reptiles

C.

presence of gill clefts in vertebrate embryos

D.

A.

alcohol

B.

acid

C.

oxygen

D.

water

A.

competition

B.

temperature

C.

light

D.

pH

A.

mixed farming

B.

bush fallowing

C.

shifting cultivation

D.

continuous cropping

A.

III

B.

IV

C.

I

D.

II

A.

negative chemotaxis

B.

positive thermotaxis

C.

positive phototaxis

D.

negative phototaxis

A.

concealment coloration

B.

countershading

C.

colour blending

D.

disruptive coloration

A.

assimilation

B.

absorption

C.

inhibition

D.

digestion

A.

presence of a pore

B.

increase in solute concentration in the guard cells

C.

presence of guard cells

D.

decrease in solute concentration in the guard cells

A.

adenine _ thymine and guanine_ cytosine

B.

adenine_ guanine and thymine_ cytosine

C.

adenine_ cytosine and guanine_ thymine

D.

adenine_ adenine and cytosine_cytosine

A.

consumer

B.

decomposer

C.

producer

D.

primary consumer

A.

centromeres

B.

alleles

C.

chromosomes

D.

chromatids

A.

suction pressure

B.

transpiration pull

C.

the transport of gases and water

D.

the movement of food and water

A.

tropical rainforest

B.

desert

C.

mundane forest

D.

guinea savanna

A.

Sundew

B.

Loranthus

C.

Rhizopus

D.

tapeworm

A.

nature of substratum

B.

high salinity

C.

high temperature

D.

low pH

A.

collar bones and coccyx

B.

pectoral and pelvic girdles

C.

scapulae and clavicles

D.

vertebrae and sternum

A.

protozoans

B.

roots of higher plants

C.

bacteria

D.

filamentous algae

A.

rainfall

B.

humidity

C.

wind

D.

soil

A.

copper

B.

potassium

C.

phosphorous

D.

sodium

A.

prothallus

B.

Gametangium

C.

saprophyte

D.

gametophyte

A.

stomach

B.

duodenum

C.

ileum

D.

colon

A.

blood grouping

B.

tongue rolling

C.

behavioural patterns

D.

colour variation

A.

presence of wings, possession of a small head and large thorax

B.

presence of wings, possession of a large thorax and a small head

C.

absence of wings, possession off strong mandibles and a large head

D.

absence of wings, possession of big head and the absence of mandible.

A.

pisces

B.

Reptilia

C.

Amphibia

D.

Mammalia

A.

break the harmattan wind

B.

beautify the region

C.

check desert encroachment

D.

provide wood fuel

A.

Darwin’s theory

B.

Lamarck’s theory

C.

genetic drift

D.

gene flow

A.

Vitamin E

B.

Vitamin K

C.

Vitamin C

D.

Vitamin A

A.

wets the soil for proper germination

B.

protects the seed from desiccation

C.

activates the enzymes

D.

promotes aerobic respiration

A.

Achatina

B.

Tilapia

C.

Dog fish

D.

Tortoise

A.

Plateau

B.

Taraba

C.

Enugu

D.

Bauchi

A.

(a)okro

B.

tomato

C.

bean

D.

orange

A.

neutralize the effect of bile

B.

coagulate milk protein and emulsify fats

C.

stop the action of ptyalin

D.

break up food into smaller particles

A.

camouflage

B.

chemical defence

C.

physical defence

D.

mimicry

A.

reduce the friction caused by the pumping movements of the heart

B.

supply the heart with oxygen and nutrients

C.

prevent disease organisms from attacking the heart

D.

reduce the intensity of the pumping action of the heart

A.

reduction of carbon (IV) oxides to organic compounds

B.

release of oxygen and the splitting of water

C.

photolysis of water and the production of starch

D.

splitting of water into hydrogen ions.

A.

the pulmonary artery

B.

systemic circulation

C.

the lymphatic system

D.

pulmonary circulation

A.

pileus

B.

Mycelium

C.

basidium

D.

Stipe

A.

kidney

B.

bladder

C.

colon

D.

liver

A.

chance the colour of their body

B.

raise their body temperature to become active

C.

fight to defend their territories

D.

attract the female for courtship

A.

occupy the same ecological riches

B.

Be in different habitats

C.

occupy different ecological riches

D.

be in similar micro habitats

A.

mottled colours on moths that rest o lichens

B.

bright colour of an insect pollinated flower

C.

green colour of a plant

D.

bright marks on a poisonous tropical frog on variegated leaves

A.

pericycle

B.

cortex

C.

endodermis

D.

Parenchyma

A.

pioneer colonizers are more in number

B.

soil is already present

C.

Secondary series require less nutrients

D.

species competition is increased

A.

maintain soil fertility

B.

improve the nutritional value of crops

C.

control soil erosion

D.

ensure the growth of crops.

A.

rain forest

B.

Guinea savanna

C.

Sudan savanna

D.

montane forest

A.

At adolescence

B.

At puberty

C.

At birth

D.

At conception

A.

provide abundant food for birds and other animals during the early rains

B.

ensure cross breeding between members of one colony and another

C.

expel the reproductive so as to provide enough food for other members

D.

disperse the reproductive in order to establish new colonies

A.

nymph

B.

imago

C.

pupa

D.

caterpillar

A.

an increase in biomass at each successive level

B.

a decrease in biomass at each successive level

C.

an increase in the number of organisms at each successive level

D.

an increase in the total weight of living matter at each successive level.

A.

watering

B.

crop rotation

C.

maturing

D.

irrigation

A.

flash colouration

B.

disruptive colouration

C.

warming colouration

D.

countershading colouration

A.

voluntary muscle

B.

heart beat

C.

tongue

D.

hands

A.

predation

B.

symbiosis

C.

natural selection

D.

geographical isolation

A.

instar formation

B.

metamorphosis

C.

tagmosis

D.

Ecdysis

A.

xxy and xyy

B.

xx and xyy

C.

xx and xy

D.

xy and xxy

A.

75%

B.

50%

C.

25%

D.

100%

A.

The epidermis is completely encircled by the cortex

B.

The xylem is more interiorly located than the phloem

C.

The cambium lies between the cortex and the vascular bundles

D.

The vascular bundles are randomly scattered within the cortex

A.

I

B.

II

C.

III

D.

IV

A.

liver

B.

duodenum

C.

small intestine

D.

pancreas

A.

xylem and phloem

B.

root hairs and xylem

C.

lenticels and phloem

D.

roots and stems

A.

Gall blader

B.

Lieum

C.

Pancreas

D.

kidney

A.

lymphocytes

B.

leucocytes

C.

erythorocytes

D.

thromboytes

A.

Temperature, salinity, predation and disease

B.

Food, predation, disease and accumulation of metabolites

C.

Temperature, food disease and light

D.

food, salinity, accumulation of metabolites and light

A.

budding

B.

sexual

C.

vegatative

D.

asexual

A.

possession of unicellular structures

B.

Development of flowers

C.

dispersal of spores

D.

Development of secondary thickening

A.

urethra

B.

loop of henle

C.

ureater

D.

Bowman’s capsule

A.

it involves the asexual multiplication of the tissues of the original organisms

B.

the clone is similar to but not exactly like the original organism

C.

Only one cell of the original organism is needed to initiate the process

D.

it is welcomed as an ethically and morally sound science

A.

20%

B.

25%

C.

40%

D.

50%

A.

Pellicle

B.

pigment sport

C.

large vacuole

D.

gullet

A.

claspers, prostrate, gland, sperm duct and vas deferns

B.

testis, prostrate gland, sperm duct and vas deferns

C.

oviduct , urethra, testis and sperm duct

D.

testis, uterus, prostrate gland and sperm duct.

A.

organic matter

B.

glass

C.

plastics

D.

metal scraps

A.

Mistletoe growing on an orange tree

B.

Fungi growing on a dead tree branch

C.

cattle egrets taking ticks from the body of cattle

D.

a squirrel living in an abandoned nest of a bird

A.

conjugation

B.

binary fission

C.

grafting

D.

Budding

A.

ureter

B.

Pelvis

C.

cortex

D.

medulla

A.

6.25%

B.

10. 36%

C.

14.28%

D.

43.28%

A.

flight enemies

B.

remain undetected

C.

warn enemies

D.

attract mates

A.

cell wall

B.

lignin

C.

cellulose

D.

chitia

A.

becomes faccid

B.

contains cystals

C.

becomes turgid

D.

is pigmented