MCQ
The wrongly matched pair w.r.t. the organisms and their probable time of evolution is
- AJawless fish -around $350$ mya
- BLobefins -around $350$ mya
- ✓Fish-like giant reptiles -around $320$ mya
- DSea weeds -around $320$ mya
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(i)$ Bacillus thuringiensis are available in sachets as dried spores which are mixed with kerosine and sprayed on to vulnerable plants
$(ii)$ B. thuringiensis are used to control butterfly caterpillars, but leave other insects unharmed
$(iii) $ The toxin of B. thuringiensis is released in the blood of larvae and the larvae get killed
$(iv)$ By the development of methods of genetic engineering B. thuringiensis toxin genes have been introduced