Question

A bird introduced from another country became a serious pest due to the

• A. Better adaptation to new area
• B. More sexual reproduction
• C. Better nesting habitats
• D. Absence of natural competition

Answer 1

The correct option is D Absence of natural competition

There is no natural competition organisms in this case. The bird is coming from a different country, so its habits and behaviour will be quite different from those already living there.

So, option D is the correct answer.