2005 WAEC Biology past questions and answers

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1
Which of the following groups embraces the rest?

A Class

B Kingdom

C Phylum

D Species



Correct Option: B


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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


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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


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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


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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


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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


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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


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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


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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


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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


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