What is common to Pantoeaagglomerans, Microbacteriumlaevaniformans and Pseudomonas putida?
1. They are phosphate solubilising bacteria
2. They are all denitrifiers
3. They are genetically modified to fix atmospheric nitrogen
4. They are source of antibiotics effective against MRSA
Which one of the following is not a gaseous biogeochemical cycle in ecosystem ?
1. Sulphur cycle
2. Phosphorus cycle
3. Nitrogen cycle
4. Carbon cycle
Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks.
Options :
A |
B |
C |
D |
|
1. |
Rock minerals |
Detritus |
Litter fall |
Producers |
2. |
Litter |
Producers |
Rock minerals |
Detritus |
3. |
Detritus |
Rock minerals |
Producer |
Litter fall |
4. |
Producers |
Litter fall |
Rock minerals |
Detritus |
Natural reservoir of phosphorus is :
1. Animal bones
2. Rock
3. Fossils
4.Sea water