Question
An example of agarophyte is
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$(i)$ 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

| Total animal | |
| (l) Unisexual animal - | 3 |
| (II) True fish - | 2 |
| (III) Coelomate animal - | 4 |
| (IV) Vertebral column bearing animal - | 1 |
These are the functions of