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Biology
UTME / JAMB 2008
Variety of Organisms & Classification of Living Things
Solution
In terms of the number of individuals, which of the following taxa is most inclusive?
A
order
B
family
C
class
D
species
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Organisms are grouped together into taxa (singular: taxon) and given a taxonomic rank; groups of a given rank can be aggregated to form a super group of higher rank and thus create a taxonomic hierarchy. A class will be most inclusive.
Source: Myschool Past Questions Archive (Record #14611)
Biology
UTME / JAMB 2008
Variety of Organisms & Classification of Living Things
Solution
A characteristic that can possibly be shared by both living and non living organisms is
A
locomotion
B
irritability
C
increase in biomass
D
increase in size
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Both living and non-living things can increase in size. Both living and non-living organisms can increase in size, non-living can increase in size due to external force, for example when an iron rod is heated it increases in size, biomass is organic and is produced by living things like plants and animals
Source: Myschool Past Questions Archive (Record #14612)
Biology
UTME / JAMB 2008
Cell Structure, Organization & Cell Division
Solution
The cell of an onion bulb can be differentiated from a cheek cell by the presence of
A
plasmalemma
B
chloroplast
C
cell wall
D
nucleus
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
A cell wall will be present in the onion bulb and absent in the cheek cell.
Source: Myschool Past Questions Archive (Record #14613)
Biology
UTME / JAMB 2008
Reproduction in Plants & Animals
Solution
In plants, the structure that performs a similar function with the testis in mammals is the
A
stigma
B
filament
C
anther
D
receptance
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Anther is the part of the stamen where pollen is produced.
Source: Myschool Past Questions Archive (Record #14614)
Biology
UTME / JAMB 2008
Growth, Micro-organisms & Public Health
Solution
The bacteria type that are arranged in chains are the
A
staphylococci
B
clostridia
C
streptococci
D
bacilli
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Most bacteria come in one of three basic shapes: coccus, rod or bacillus, and spiral. The cocci are spherical or oval bacteria having one of several distinct arrangements based on their planes of division.
Division in one plane produces either a diplococcus or streptococcus arrangement.
Based on planes of division, the coccus shape can appear in several distinct arrangements: diplococcus, streptococcus, tetrad, sarcina, and staphylococcus. The streptococcu arrangement gives an arrangement in chains
Source: Myschool Past Questions Archive (Record #14615)
Biology
UTME / JAMB 2008
Variety of Organisms & Classification of Living Things
Solution
The most abundant group of organisms in the animal kingdom is
A
mammalia
B
aves
C
annelida
D
insecta
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Insects are the most abundant group of living creatures on earth with up to 30 million estimated species of insect found worldwide.
Insects can be found in all ranges of environments even (but limited) in the oceans and rivers. Insects feed on other, smaller insects and decaying leaf and plant matter.
Source: Myschool Past Questions Archive (Record #14616)
Biology
UTME / JAMB 2008
Variety of Organisms & Classification of Living Things
Solution
Radial symmetry is a feature common to
A
platyhelminthes
B
nematodes
C
coelenterates
D
arthropods
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Radial Symmetry is a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis. This is exhibited by coelenterates
Source: Myschool Past Questions Archive (Record #14617)
Biology
UTME / JAMB 2008
Supporting Tissues & Skeletal System
Solution
Which of the following is used mainly for balancing in fish?
A
the caudal fin
B
the pectoral fin
C
the anal fin
D
the dorsal fin
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Dorsal fins help fish balance. The main purpose of the dorsal fin is to stabilize the animal against rolling and to assist in sudden turns.
Source: Myschool Past Questions Archive (Record #14618)
Biology
UTME / JAMB 2008
Adaptation & Evolution
The beak of a duck is structurally adapted for
A
scooping and sieving food
B
catching and grasping food
C
picking and cracking food
D
boring and sucking food
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #14619)
Biology
UTME / JAMB 2008
Cell & Its Environment (Diffusion, Osmosis & Transport)
Solution
What will happen when two equal-sized pieces of unripe pawpaw labeled X and Y are dropped into equal volumes of concentrated salt solution and distilled water respectively?
A
pawpaw X will become turgid
B
both will increase in size
C
pawpaw Y will become turgid
D
both will decrease in size
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Pawpaw Y will become turgid. pawpaw Y will absorb water and become turgid because it is in a hypotonic solution
Source: Myschool Past Questions Archive (Record #14625)
Biology
UTME / JAMB 2008
Variety of Organisms & Classification of Living Things
Solution
Exhaled air differs from inhaled air in that it
A
less amount of carbon(IV) oxide
B
is usually lower in temperature
C
often has more oxygen
D
usually has more water vapour
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
It usually has more water vapour.
\(C_6H_{12}O_6 + O_2 → 6CO_2 + 6H_2O\) + Energy.
Source: Myschool Past Questions Archive (Record #14626)
Biology
UTME / JAMB 2008
Excretion & Homeostasis
Solution
In the mammalian kidney, the Bowman''s capsules is located in the
A
ureter
B
pelvis
C
cortex
D
medulla
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Bowman's capsule (or the Bowman capsule, capsula glomeruli, or glomerular capsule) is a cup-like sac at the beginning of the tubular component of a nephron in the mammalian kidney that performs the first step in the filtration of blood to form urine. It is located in the cortex.
Source: Myschool Past Questions Archive (Record #14627)
Biology
UTME / JAMB 2008
Cell & Its Environment (Diffusion, Osmosis & Transport)
Solution
A plant parenchyma cell also acts as a supporting tissue when it
A
becomes flaccid
B
contains crystals
C
becomes turgid
D
is pigmented
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
The parenchyma cells can function as a storage site for starch, proteins, oils, and so on but they contribute support to plants if they are turgid.
Source: Myschool Past Questions Archive (Record #14628)
Biology
UTME / JAMB 2008
Reproduction in Plants & Animals
Solution
During ovulation, an egg is released from the
A
corpus luteum
B
ovarian funnel
C
graafian follicle
D
fallopian tube
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
During Ovulation, a mature follicle called the Graafian follicle contains a secondary oocyte. this follicle causes a bulge on the surface of the ovary. it finally splits the ovarian lining and releases the ovum into the abdominal cavity.
Source: Myschool Past Questions Archive (Record #14629)
Biology
UTME / JAMB 2008
Reproduction in Plants & Animals
Solution
The most important characteristic that makes reptiles to conquer terrestrial habitats is the possession of
A
long tail
B
scaly skin
C
sharp claw
D
amniotic egg
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
It is the amniotic egg. This kind of egg is unique to the amniotes, a group that includes turtles, lizards, birds, dinosaurs, and mammals. The structure of the amniote egg is such that inside the egg are a series of fluid-filled membranes which permit the embryo to survive: the amnion, allantois, yolk sac, and chorion. Surrounding and protecting the embryo is the amnion, filled with amniotic fluid, and providing the embryo with a stable fluid environment.
Source: Myschool Past Questions Archive (Record #14620)