Which one of the following combination of bacterial strains used by Griffith, when injected to mice will NOT kill them?
Heat killed ' R '+ Live ' S '
Live ' R ' + Live ' S '
Live 'S' + Heat killed 'S'
Live ' R ' + Heat killed ' S '
Which one of the following is INCORRECT regarding 'resource partitioning'?
It occurs when two species compete for same resources.
Competition can be avoided by choosing different times for feeding.
It promotes co-existence.
It works on exclusion principle.
Which one of the following is NOT a traditional knowledge passed down through generations?
Farming practices
Conservation of biological diversity
Biologically important medicines
Use of genetically engineered microorganism for cleaning oil spills.
Match the Column I with Column II with reference to biomagnification of DDT.
| Column (I) (Organism) |
Column (II) (DDT content) |
||
|---|---|---|---|
| i. | Small fishes | a. | 0.04 ppm |
| ii. | Fish eating Birds of Prey | b. | 0.5 ppm |
| iii. | Large fishes | c. | 25 ppm |
| iv. | Zooplankton | d. | 2.ppm |
i-b, ii -d, iii -c, iv -a
i-b, ii -c, iii -d, iv -a
i-c, ii-b, iii-a, iv-d
i-d, ii -b, iii - c, iv -a
MHT CET (Biology) Papers
All year-wise previous year question papers