MCQ
Rickettsiae constitute a group under:
- ABacteria.
- BViruses.
- CIndependent group between bacteria and viruses.
- DFungi.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(i)$ This group includes diatoms and golden algae.
$(ii)$ They are microscopic and float passively in water currents (plankton).
$(iii)$ Most of them are photosynthetic.
$(iv)$ They have deposits in their habitat; this accumulation over billion of years is referred to as 'diatomaceous earth'.
- Chromosomes are fully condensed.
- by the end of this stage, the nucleolus disappear.
Identify this stage.