Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem?
Phytoplankton
Fish
Zoonplankton
Zoonplankton
B.
Fish
In a pond ecosystem fishes occupy the more than one trophic levels.
Which one of the following is being tried in India as a biofuel substitute for fossil fuels
Jatropha
Azadirachta
Musa
Musa
The Indian rhinoceros is a natural inhabitant of which one of the Indian states?
Uttarakhand
Uttar Pradesh
Himachal Pradesh
Himachal Pradesh
Study the cycle shown below and select the option which gives correct words for all the four blanks A, B, C and D.
A |
B |
C |
D |
Nitrification |
Ammonification |
Animals |
plants |
A |
B |
C |
D |
Dentirificiation |
Ammonification |
Plants |
Animals |
A |
B |
C |
D |
Nitrification |
Denitrification |
Animals |
Plants |
A |
B |
C |
D |
Nitrification |
Denitrification |
Animals |
Plants |
DDT residues are rapidly passed through food chain causing biomagnification because DDT is
liposoluble
moderately toxic
non-toxic to aquatic animals
non-toxic to aquatic animals