Waec Biology Past Questions and Answers

Question 376:

• WAEC 1995

At what level of organisation is Amoeba?

A. Tissue
B. Organ
C. Cellular
D. System
E. Filament

Question 377:

• WAEC 1995

Which of these could be regarded as an advantage of complexity in higher organisms?

A. There is no cellular differentiation
B. Cellular differentiation leads to loss of independence of the cells
C. Complexity stops at cellular differentiation only
D. Cellular differentiation leads to internal structural specialization

Question 378:

• WAEC 1995

Which of the following organisms is one-celled and free-living?

A. Volvox
B. Spirogyra
C. Rhizopus
D. Chlamydomonas
E. Hydra

Question 379:

• WAEC 1995

One of the differences between plant and animal cells is that in plants

A. 'cells have less distinct outline, but animal cells have distinct outline
B. Ell wall is made of cellulose, but animal cell wall is made of chitin
C. Large vacuoles are absent, but present in animals
D. Plastids are absent, but present in animals
E. Carbohydrates are stored as starch, but as glycogen in animals.

Question 380:

• WAEC 1995

Carbondioxide enters the stomata during photosynthesis through the process known as

A. Osmosis
B. Active transport
C. Diffusion
D. Inhalation
E. Ventilation