1.
Genetic drift operates in
2.
Which of the following is not true for a species?
3.
Zero growth means
4.
Ecological age groups of a population are
I. pre-reproductive
II. reproductive
III. post-reproductive
IV. old-age group
V. adolescent age group
VI. infertile age group
Choose the correct option for given statements
5.
Sigmoid growth curve is represented by
6.
In which one of the following pairs is the specific characteristic of soil not correctly matched?
7.
All aquatic vertebrates and most molluscs and cry fishes are
8.
Average temperature of thermal springs and deep sea hydrothermal vents exceeds
9.
In the oceans, the environment is perpetually dark at
10.
Regulators are the their animals which