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Biology UTME / JAMB 1994 Adaptation & Evolution
Use the list of biomes below to answer the question below 1. Desert 2. Rain forest 3. Southern Guinea savannah 4. Northern Guinea savannah A biome where there are many cacti and the small mammals undergo aestivation for long periods is
A
1
B
2
C
3
D
4
medium Difficulty
Biology UTME / JAMB 1994 Population Ecology, Habitats & Conservation
Ecological succession ends with the formation of a stable
A
niche
B
population
C
pioneer community
D
climax community
medium Difficulty
Biology UTME / JAMB 1994 Variety of Organisms & Classification of Living Things
In a drought situation, plants suffer from water stress which could result in
A
reduced biochemical activities
B
enhanced chemical activities
C
enhanced microbial activities
D
reduced phototropic activities
medium Difficulty
Biology UTME / JAMB 1994 Variety of Organisms & Classification of Living Things
The water-retention capacity of a soil indicates its
A
fertility
B
capilarity
C
aeration level
D
pH level
medium Difficulty
Biology UTME / JAMB 1994 Variety of Organisms & Classification of Living Things
People who suck petrol with their mouths run the risk of increasing in their blood the concentration of
A
iron
B
lead
C
calcium
D
magnesium
medium Difficulty
Biology UTME / JAMB 1994 Variety of Organisms & Classification of Living Things
The difference and similarities among living things account for
A
diversity
B
stability
C
competition
D
evolution
medium Difficulty
Biology UTME / JAMB 1994 Variation & Genetics (Heredity)
People wit sickle-cell anaemia have haemoglobin
A
S and are homozygous recessive
B
A and are heterozygous recessive
C
S and are heterozygous recessive
D
A and are homozygous recessive
medium Difficulty
Biology UTME / JAMB 1994 Variation & Genetics (Heredity)
In the gene locus for eye colour in humans, the allele for brown eye is dominant over the allele for blue eyes. If a homozygous brown-eyed girl has a brother with blue eyes, what are the likely phenotypes of there parents'eye colour (Eye colour is not a sex linked trait)
A
Both parents have blue eyes
B
Their father has blue eyes and their mother has brown eyes
C
both parents have brown eyes
D
Their mother has the blue eyes and their father has the brown eyes
medium Difficulty
Biology UTME / JAMB 1994 Variation & Genetics (Heredity)
If a woman's genotype is Tt Qq Rr, what would be the gene content of her eggs?
A
TQr, tqr
B
TQR, tqr
C
TqR, tQr
D
tQr, TQR
medium Difficulty
Biology UTME / JAMB 1994 Variation & Genetics (Heredity)
The sex-linked defect in which very slight cut produces severe bleeding is known as
A
anaesmia
B
anorexia
C
haemophilia
D
haemolysis
medium Difficulty
Biology UTME / JAMB 1994 Variation & Genetics (Heredity)
A man who has the trait for colour blindness marries a normal woman. What percentage of their children would be sufferers, carriers and normal respectively
A
25%, 25% and 50%
B
25%, 50% and 25%
C
50%, 25% and 25%
D
25%, 37.5% and 37%
medium Difficulty
Biology UTME / JAMB 1994 Basic Ecological Concepts, Ecosystems & Biomes
Breathing root is an adaptation for survival in the
A
mangrove swamp
B
desert
C
arboreal habitat
D
savanna
medium Difficulty
Biology UTME / JAMB 1994 Adaptation & Evolution
Red coloration on the head of a male lizard helps it to
A
mark is territory
B
camouflage in the enviroment
C
secure its mate
D
defend itself
medium Difficulty
Biology UTME / JAMB 1994 Adaptation & Evolution
A phenomenon by which an animal goes into a state of dormancy during the dry season is called
A
hibernation
B
aestivation
C
incubation
D
deactivation
medium Difficulty
Biology UTME / JAMB 1994 Variety of Organisms & Classification of Living Things
The anatomical evidence usually used in support of the evolutionary relationship among whales, human, birds, and dogs is the possession of
A
thick skin
B
pentadactyl limb
C
tail
D
epidermal structure
medium Difficulty
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