2005 - WAEC Biology Past Questions & Answers - page 1

1
Which of the following groups embraces the rest?
A
Class
B
Kingdom
C
Phylum
D
Species
CORRECT OPTION: b
2
The group mollusca is characterized by the presence of
A
jointed appendages
B
star-shaped bodies
C
backbones
D
Soft, non-segmented
CORRECT OPTION: d
3
A virus can sometimes be regarded as a living organism because it
A
causes disease in plants and animals
B
exists in a variety of shapes
C
reproduces in living cells
D
is easily visible with the aid of an electron microscope
CORRECT OPTION: c
4
A mayor difference between plants and animals is that
A
there is free movement in animals while this is limited in plants
B
there is indefinite growth in animals only
C
animals consume inorganic materials as food, while plants consume organic materials
D
animals give up carbon-dioxide as a waste product of respiration while plants do not.
CORRECT OPTION: a
5
Which of the following adaptation is no found in fruits and seeds dispersed by the win '?
A
Small and light body
B
Spongy coats
C
Turfs of hairs
D
Wings on pericarp
CORRECT OPTION: b
6
The main similarity between unicellular and multicellular organisms is that both
A
perform all life activities
B
exist as filaments
C
are plants
D
exist as colonies
CORRECT OPTION: a
7
One important characteristic of green plants is that they
A
possess specialized sense organs
B
are usually motile
C
are autotrophic
D
respond slowly to stimuli
CORRECT OPTION: c
8
A serious disadvantage of complexity in higher organisms is
A
a high demand for food and energy
B
ability to function in many specialized roles
C
little amount of energy dissipated in functioning
D
specialization of parts of the body
CORRECT OPTION: a
9
Which of these organs can be considered vestigial in humans but functional in other mammals? The
A
liver
B
appendix
C
rectum
D
stomach
CORRECT OPTION: b
10
Which of the following pairs of organisms are photosynthetic?
A
Amoeba and Paramecium
B
Volvox and Rhizopus
C
Chlamydomonas and Euglena
D
Nostoc and Plasmodium
CORRECT OPTION: c
Pages: