2024 - JAMB Biology Past Questions and Answers - page 6

51

The depressed side of paramecium which is lined with cilia leads to a tube-like structure called

A
anal pore
B
oral groove
C
gullet
D
food vacuole
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52

Inbreeding is highly discouraged in humans because it may  

A
increase the death rate of new born
B
lead to the birth of dwarfs
C
lead to high rate of competition among offspring
D
lead to outbreak of hereditary diseases
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53

How many chromosomes will be present in a gamete if the somatic cell has 8 chromosomes?

A
16
B
6
C
4
D
8
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54

A fruit formed from one flower with many carpels is referred to as

A
simple
B
multiple
C
aggregate
D
false
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55

The oxygen transported to all parts of the body during blood circulation is used for the

A
growth and development of cells
B
removal of waste products
C
release of energy from food
D
formation of carboxyl haemoglobin
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56

One of the following is a courtship behaviour in animals

A
fighting
B
display
C
hibernation
D
feeding
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57

Pentadactyl forelimb of vertebrate function due to differences in environment is

A
comparative anatomy
B
physiological evidence
C
embryological evidence
D
fossil records
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58

A photosynthetic carnivorous plant which feeds on insects is

A
parasitic
B
saprophytic
C
herbivorous
D
insectivorous
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59

A succession that occurs in an area where there are no pre-existing community is called

A
tertiary succession
B
primary succession
C
post-primary succession
D
secondary succession
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60

Lamarck's theory of evolution is based on the idea of

A
the inheritance of acquired traits
B
organisms' survival of the fittest
C
organisms constantly struggling for existence
D
plenty offspring produced by organisms
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