Pikas are small, mountain-dwelling mammals found in cold regions.
Unlike many other animals in such environments, they do not hibernate
Instead, they collect and store food during the summer to survive the harsh winters.
Which of the following element is fixed by cyanobacteria?
- Oxygen
- Nitrogen
- Carbon
- None of these
Explanation
Cyanobacteria are the only diazotrophs (nitrogen-fixing organisms)
That produces oxygen as a by-product of the photosynthetic process, and which must negotiate the inevitable presence of molecular oxygen with an essentially anaerobic enzyme.
Related MCQs
- Oxygen
- Nitrogen
- Carbon
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- Vole
- Porcupine
- Pikas
- Cocktail Rabbit
اس سوال کو وضاحت کے ساتھ پڑھیں
- Placoderm
- Archeopteryx
- Therapsids
- All of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- Release harmful gases in environment
- Used oxygen in burning
- Release of Carbon Dioxide
- All of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- Incomplete dominance
- Co dominance
- Over dominance
- Complete dominance
اس سوال کو وضاحت کے ساتھ پڑھیں
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