Biology Past Questions and Answers

The sum total of adaptive changes from pre-existing form that have taken place over a long time resulting in diversity of forms, structures and functions among organism is referred to as

A Specification
B Inorganic Evolution
C Evolution
D Organic Evolution

Question 2147:

The specific portion of a habitat which is occupied by a particular species is referred to as

A Ecological population
B Ecological niche
C Biotic community
D Ecosystem

Question 2148:

In plants, respiration occurs in

A The stomata and lenticel only
B Mesophyll cells only
C All living cells
D The root only

Question 2149:

Which of the following is an example of discontinous variatio?

A The range in height of a pea plant from 30cm to 50cm
B Offsprings including two male cats and three female cats
C The colour of pear plants grown in the dark
D The adult body weight ranging from 50kg to 95kg

Question 2150:

Which of the following type of soil has the highest water retaining capacity?

A Loam
B Laterite
C Clay
D Sand