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Biology Past Questions and Answers

Waec Biology Questions

Question 376:

At what level of organisation is Amoeba?

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A Tissue
B Organ
C Cellular
D System
E Filament

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Question 377:

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

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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

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Question 378:

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

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A Volvox
B Spirogyra
C Rhizopus
D Chlamydomonas
E Hydra

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Question 379:

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

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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.

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Question 380:

Carbondioxide enters the stomata during photosynthesis through the process known as

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A Osmosis
B Active transport
C Diffusion
D Inhalation
E Ventilation

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