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Biology
UTME / JAMB 2009
Variation & Genetics (Heredity)
A farmer's assumption that the seed from a good harvest will produce a good yield is explained by the theory of
A
evolution
B
adaptation
C
variation
D
heredity
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #14808)
Biology
UTME / JAMB 2009
Excretion & Homeostasis
Solution
The nephridia in the earthworm form part of the?
A
reproductive system
B
respiratory system
C
circulatory system
D
excretory system
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
In earthworms, members of the phylum Annelida, the excretory system consists of structural units called nephridia (the singular is nephridium).
Source: Myschool Past Questions Archive (Record #14809)
Biology
UTME / JAMB 2009
Variety of Organisms & Classification of Living Things
A woman with the ability to roll her tongue (Tt) marries a man who cannot roll his tongue(tt). what is the probability of each of their children being a tongue roller?
A
100%
B
75%
C
50%
D
25%
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #14810)
Biology
UTME / JAMB 2009
Variation & Genetics (Heredity)
A health condition that is known to have resulted from gene mutation is?
A
typhoid
B
rabies
C
sickle-cell anaemia
D
sleeping sickness
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #14811)
Biology
UTME / JAMB 2009
Population Ecology, Habitats & Conservation
Plants that grow in an area that is neither too wet nor too dry are
A
xerophytes
B
mesophytes
C
epiphytes
D
hydrophytes
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #14812)
Biology
UTME / JAMB 2009
Variety of Organisms & Classification of Living Things
Solution
The part of a domestic fowl responsible for preventing heat loss is the?
A
filoplume
B
contour feather
C
down feather
D
quill
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
DOWN FEATHERS ARE THOSE WHICH HELP TO KEEP THE BIRDS'S BODY WARM.
THEY ARE SOFT AND FLUFFY, FOUND ON THE INNER SIDE OF BIRD'S BODY .
Source: Myschool Past Questions Archive (Record #14813)
Biology
UTME / JAMB 2009
Adaptation & Evolution
Solution
Which of the following animals is most adapted for water conservation?
A
earthworms
B
mammals
C
flatworms
D
insects
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Insects are widespread and adapted to all types of environment even the driest and hottest places on earth.
Source: Myschool Past Questions Archive (Record #14814)
Biology
UTME / JAMB 2009
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Solution
The specialized pigment cells that are involved in colouration and colour change in animals?
A
xanthophyll
B
chromatophores
C
chlorophyll
D
melanin
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Chromatophores are cells that produce color, of which many types are pigment-containing cells, or groups of cells, found in a wide range of animals including amphibians, fish, reptiles, crustaceans and cephalopods.
Mammals and birds, in contrast, have a class of cells called melanocytes for coloration.
Source: Myschool Past Questions Archive (Record #14815)
Biology
UTME / JAMB 2009
Adaptation & Evolution
Solution
During the dry season in the tropics, the body metabolism of some animals slow to a minimal level in a process referred to as?
A
hibernation
B
aestivation
C
dormancy
D
senescense
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Aestivation is characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions. It takes place during times of heat and dryness, the hot dry season, which are often the summer months.
Source: Myschool Past Questions Archive (Record #14816)
Biology
UTME / JAMB 2009
Adaptation & Evolution
According to Darwin, the driving force behind evolutionary change is
A
natural selection
B
genetic drift
C
mutation
D
gene flow
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 #14817)
Biology
WAEC / WASSCE 2009
Variety of Organisms & Classification of Living Things
A group of closely related organisms capable of interbreeding to produce fertile offspring are known as members of a
A
kingdom
B
class
C
family
D
species
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #21422)
Biology
WAEC / WASSCE 2009
Variety of Organisms & Classification of Living Things
Solution
Viruses are economically important because they?
A
do not have cell structures
B
can only reproduce inside living cells.
C
cause diseases in plants and animals
D
exist as crystals outside living cells
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Plant viruses are of considerable economic importance because many of them infect crop and ornamental plants.
Numerous plant viruses are rodlike and can be extracted readily from plant tissue and crystallized.
Animal viruses of economic importance: Genetic variation, persistence, and prospects for their control.
Source: Myschool Past Questions Archive (Record #21423)
Biology
WAEC / WASSCE 2009
Variety of Organisms & Classification of Living Things
A beaker of pond water containing few specimens of Euglena was placed in a dark room for two weeks. At the end of this period, the specimens of Euglena were still alive because they were
A
able to carry out holozoic nutrition.
B
able to carry out photosynthesis using carbon dioxide in the pond water
C
better adapted to life in darkness than to life in light
D
not overcrowded
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 #21424)
Biology
WAEC / WASSCE 2009
Cell Structure, Organization & Cell Division
The cytoplasm of the cell is considered a very important component because it
A
regulates the amount of energy in the cell
B
suspends all cell organelles.
C
is the outermost part of the cell
D
is solely responsible for cell division
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #21425)
Biology
WAEC / WASSCE 2009
Cell Structure, Organization & Cell Division
Solution
Two organelles directly involved in mitotic cell division are
A
nucleus and mitochondrion
B
ribosome and nucleus.
C
centriole and Golgi apparatus
D
nucleus and centriole
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Two key organelles directly involved in mitotic cell division are the centrosome (which contains centrioles) and the nucleus. The centrosome, with its centrioles, helps organize the mitotic spindle, while the nucleus houses and organizes the genetic material (chromosomes) during the division process.
Centrioles are cylindrical structures found in animal cells and are essential for cell division. They organize the mitotic spindle, a structure that ensures accurate chromosome separation during mitosis.
Source: Myschool Past Questions Archive (Record #21431)