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Biology Past Questions and Answers

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Biology Questions

Question 4396:

The result of placing a plant cell in a hypertonic solution for a long time is ____________ of the cell.

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A Crenation
B Flaccidity
C Haemolysis
D Turgidity
E Vasodilation

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Question 4397:

Which statement about how all life started is NOT true according to current thinking on evolutionary trends?

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A Animals to plant life
B Aquatic to terrestrial forms
C Non-specialization to specialization in functions
D Simple to complex forms
E Unicellularity to multicellularity

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Question 4398:

What is NOT a supporting tissue in plant?

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A Collenchymas
B Coracoid
C Parenchyma
D Sclerenchyma
E Xylem

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Question 4399:

Mammals are said to be homoiothermic because their body temperature is ____________

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A Always higher than that of their environment
B Always lower than that of their environment
C Always the same as that of their environment
D Relatively constant irrespective of that of their environment
E Remains at 37 ^o c all the time

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Question 4400:

Which statement is NOT true of both meiosis and mitosis?

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A Aligning of chromosomes at equator
B Disintegration of nuclear material
C Formation of spindle apparatus
D Halving the number of chromosomes
E Thickening and shortening of chromosomes

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