Question

Q. Consider the following statements about the Invasive species:

Which of the statements given above is/are correct?

• A. 1 only
• B. 2 and 3 only
• C. 1 and 2 only
• D. 1, 2 and 3

Answer 1

The correct option is C 1 and 2 only

Explanation:

• Statement 1 is correct: Invasive species show features like “pioneer species” in varied landscapes, tolerant of a wide range of soil and weather conditions.
• Statement 2 is correct: Invasive species have relatively smaller amounts of DNA and are able to divide and multiply more quickly and therefore the entire plant can grow more rapidly than species with higher cellular DNA content.
• Statement 3 is incorrect: They are generalist in distribution, therefore have a broad niche. They produce large amounts of seed that disperse easily, grow aggressive root systems, have short generation time, high dispersal rates, long flowering and fruiting periods, broad native range, and are abundant in the native range.