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Biology
UTME / JAMB 2019
Reproduction in Plants & Animals
Solution
Which of the following describes an example of fertilization in higher organisms
A
Fusion of sperm and egg nuclei
B
Pollen grain landing on a sticky stigma
C
Ejaculation of the egg and pollen grain
D
Ejaculation of sperm into the female body
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Fusion of sperm and egg nuclei is an example of fertilization in mammals.
Source: Myschool Past Questions Archive (Record #55972)
Biology
UTME / JAMB 2019
Variation & Genetics (Heredity)
Solution
Which of the following will have the least effect on the rate of change of the numbers in a population
A
Mutation
B
Food Supply
C
Disease
D
Predation
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Mutation involves the changes in the gene resulting in an inheritable character, therefore not having effect on the rate of change of the numbers in a population.
Source: Myschool Past Questions Archive (Record #55978)
Biology
UTME / JAMB 2019
Nervous, Hormonal Coordination & Sense Organs
Solution
Which of the following controls all voluntary actions
A
Olfactory lobes
B
Cerebrum
C
Hypothalamus
D
Pons varolii
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Cerebrum is the largest part of the brain and it controls all voluntary actions like speech, dancing etc and also concerned with the concentration and co-ordination of impulses.
Source: Myschool Past Questions Archive (Record #55979)
Biology
UTME / JAMB 2019
Nervous, Hormonal Coordination & Sense Organs
Solution
Which of the following statement describes an autonomic nervous system
A
It always stimulates effectors
B
Activities are voluntary
C
It dials with external stimuli and their responses
D
It affects glands, cardia muscles and smooth muscles
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Autonomic nervous system is concerned with the control of the body's involuntary activities e.g breathing, heartbeat, digestion etc
Source: Myschool Past Questions Archive (Record #55980)
Biology
UTME / JAMB 2019
Excretion & Homeostasis
Solution
The glomerular filtrate contains the following except
A
Water
B
Urea
C
Blood Corpuscles
D
Glucose
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
The glomerulus helps in the mechanism of excretion (formation of urine) in mammals. It does not contain the blood corpuscles.
Source: Myschool Past Questions Archive (Record #55981)
Biology
UTME / JAMB 2019
Adaptation & Evolution
Solution
One of the following is not the theory of natural selection stated by Charles Dawin
A
Characteristics acquired through use or disuse are transmitted offspring
B
Variations appear by themselves in a population
C
Heredity variations are transmitted to offspring
D
Species that are the fittest for the environment contribute more offsprings to the next needs of the generation
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Charles Darwins theory is that of natural selection not of use and disuse
Source: Myschool Past Questions Archive (Record #55982)
Biology
UTME / JAMB 2019
Basic Ecological Concepts, Ecosystems & Biomes
Solution
Ecology is best defined as the study of
A
The characteristics of an environment
B
The inter-relationship between living organisms and the environment
C
Living organisms in a particular area
D
The habitats and wild life
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Ecology is best defined as the study of the inter-relationship between living organisms and the environment.
Source: Myschool Past Questions Archive (Record #55983)
Biology
UTME / JAMB 2019
Supporting Tissues & Skeletal System
Solution
The following processes are involved during expiration in man except
A
The inter costal muscles relax
B
The thoracic cavity first increases in volume
C
The sternum moves inward
D
The ribs are moved downwards and inwards
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
During respiration process in man under expiration process the thoracic cavity does not increase in volume
Source: Myschool Past Questions Archive (Record #55984)
Biology
UTME / JAMB 2019
Transport System in Plants & Animals
Solution
Which of the following is an example of continous variation?
A
Human blood groups
B
Sex difference in human
C
Haemoglobin types
D
Height in humans
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Continuous variations are variations which change gradually within a population e.g height in humans.
Source: Myschool Past Questions Archive (Record #55985)
Biology
UTME / JAMB 2019
Variety of Organisms & Classification of Living Things
Solution
One of the following is an effect of clay soil on vegetation
A
Supports luxuriant vegetation such as forest
B
Supports scanty vegetation
C
Does not support light vegetation
D
Support arid vegetation
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Clay soil's effect on vegetation is that it supports light vegetation such as scanty vegetation.
Source: Myschool Past Questions Archive (Record #55986)
Biology
UTME / JAMB 2019
Basic Ecological Concepts, Ecosystems & Biomes
Solution
Which of the following factors is not considered in a terrestial habitat?
A
Temperature
B
Sunlight
C
Humidity
D
Turbidity
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Turbidity is not a factor in terrestrial habitat it is a factor in aquatic habitat because turbidity also means cloudy which is an aquatic factor.
Source: Myschool Past Questions Archive (Record #55987)
Biology
UTME / JAMB 2019
Respiration & Gaseous Exchange
Diagram
Solution
The part labeled III in the above diagram is
Attached Figure / Diagram
A
Root
B
Gills
C
Hyphae
D
Rhizoids
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Hyphae in a mushroom is a vegetative body parts made up of time and delicate thread containing nuclei
Source: Myschool Past Questions Archive (Record #55973)
Biology
UTME / JAMB 2019
Variety of Organisms & Classification of Living Things
Diagram
Solution
The organism above can be found in
Attached Figure / Diagram
A
Arid land
B
Secluded environments
C
Aquatic habitation
D
Moist environments
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
It is found in moist environment because of its adaptive features.
Source: Myschool Past Questions Archive (Record #55974)
Biology
UTME / JAMB 2019
Cell Structure, Organization & Cell Division
Solution
The possession of chloroplast in Euglena virids enables it to
A
Store starch
B
Carry out photosynthesis
C
Reproduce
D
Respond to light
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Euglena vivids possesses chloroplast (plants feature) in order for it to carry out photosynthesis
Source: Myschool Past Questions Archive (Record #55975)
Biology
UTME / JAMB 2019
Growth, Micro-organisms & Public Health
Solution
Viruses are pathogens of the following diseases except
A
Tuberculosis
B
Measles
C
Small pox
D
Poliomyelitis
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Tuberculosis is classified under diseases causes by bacteria not virus.
Source: Myschool Past Questions Archive (Record #55976)