Civil Services TNPSC Group 1 (New Syllabus) Mock Test 2025 General Knowledge Ecology and Environment Ecology and Functions of an ecosystem
Consider the following organism:
a) Parthenium
b) Water Hyacinth
c) Lantana
d) Utricularia
Which of the following is/are invasive alien species that are a threat to native biodiversity?
1
a and b only
2
a, b, and d only
3
a, b and c only
4
a, b, c and d
5
Answer not known