2018 - WAEC Biology Past Questions and Answers - page 1
1
The scientist who introduced binomial nomenclature in the classification of organisms was
A
Charles Darwin
B
Carolus Linnaeus
C
John Ray
D
Louis Pasteur
2
Which of the following statements is true about arthropods?
A
Prothorax bears only legs
B
Mesothorax bears only legs
C
Metathorax bears only wings
D
Prothorax bears only wings
3
What level of organisation is Spirogyra?
A
System
B
Organ
C
Cell
D
Tissue
4
The streaming movement of cytoplasm within the Paramecium is known as
A
Transpiration
B
Digestion
C
Cyclosis
D
Osmosis
5
Which of the following organelles is found only in plant cells?
A
Mitochondria
B
Ribosomes
C
Lysosomes
D
Plastids
6
Active transport differs from diffusion in that active transport
A
is a very fast process
B
allows the movement of substances against concentration gradient
C
takes place in both light and dark reaction of photosynthesis
D
occurs in both plant and animal tissues
7
The diagrams above are illustrations of an experimental set-up to demonstrate a type of tropic response in plants. The type of response demonstrated is
A
phototropism
B
geotropism
C
hydrotropism
D
thigmotropism
8
The conclusion drawn from the experiment in the diagram above is that
A
shoots of plants are negatively thigmotropic
B
shoots of plants are negatively geotropic
C
shoots of plants are positively phototropic
D
roots of plants are positively hydrotropic
9
The odontoid process is found on the
A
axis vetebra
B
atlas vetebra
C
thoracic vetebra
D
sacral vetebra
10
A seedling was made to stand in a solution of red ink for three hours and a transverse section of the stem was examined under the microscope. The process being investigated was
A
the importance of micro elements to plants
B
ascent of water through the xylem
C
diffusion of colored substances
D
distribution of food in plants
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