Biology Past Questions and Answers

Which of these is not a true characteristic of the tropical rain forest?

A Vegetation consists predominantly of tall trees, with thick canopy
B Forest is rich in epipphysis and climbers
C Annual rainfall is less than 100 cm
D Interior has low light intensity, high humidity and damp floor
E Fruits of trees are often large-sized and are generally without adaptation to wind dispersal

Question 1882:

The frequency of andropogon in a grass lawn is 90 100. Throws were made with 1 meter square quadrat.
What is the density of andropogon in the field?

A 0.09 per m²
B 090 per m²
C 9.0 per m²
D 90 per m²
E 900 per m²

Question 1883:

Which of the following is the correct method of collecting soil organism?

A Heating the soil sample in an oven
B Aerating the soil sample
C Refrigerating the soil for some hours
D Pouring hot water on the soil to enable the organism float
E Placing a lighted electric bulb over soil in a funnel

Question 1884:

Which of these groups of organisms is responsible for capturing energy for the biotic community?

A Decomposers
B Omnivores
C Consumers
D Producers
E Detritus feeders

Question 1885:

The following are pathways of energy in the biosphere
I. Heat energy is lost from body metabolism to the surrounding air II. Energy passes to decomposers and
parasites III. Energy is transferred to the next higher level in a food chain IV. Energy is also passed
by conduction to clothing and other objects

Which pathway directly leads to transfer of useful energy within a biological community?

A I only
B II and III only
C I and III only
D I and II only
E IV only