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11.Organisms and Populations
medium
One of the major difficulties in the biological control of insect pests is that
A
The predator develops a preference to other diets and may itself become a pest
B
The predator does not always survive when transferred to a new environment
C
The method is less effective as compared with the use of insecticides
D
The practical difficulty of introducing the predator to specific areas
(AIPMT-1995)
Solution
It’s obvious.
Standard 12
Biology
Similar Questions
Fill in the blanks
| Species $A $ | Species $B$ |
Type of Interaction | Example |
| $+$ | $-$ | $(a)$ | $(b)$ |
| $+$ | $+$ | $(a)$ | $(d)$ |
| $+$ | $(e)$ |
Commensalism |
$(f)$ |
medium
