Which of the following components are present in dry bones after burning?

Which gland in mammals secretes odoriferous substances?

During embryonic development,from which germinal layer do the endoskeleton and muscles originate?

All the carnivores have

Identify the correct terms for the following analogy-based questions:
$(i)$ In cockroach,blood is : $Hemolymph$ :: In frog : ..........
$(ii)$ Before nymphal stage : $Wing$ $pad$ :: In adult cockroach : ...
$(iii)$ In earthworm : Tactile receptors :: In cockroach,dorsal side of the head : .....

Select the correct option for the matching pairs:

Column-$I$	Column-$II$	Column-$III$
$(1)$ Cockroach	$(p)$ Anis	$(w)$ Posthuma
$(2)$ Frog	$(q)$ Asterias	$(x)$ Megascolecidae
$(3)$ Maize	$(r)$ Anura	$(y)$ Opisthopora
$(4)$ Earthworm	$(s)$ Zea	$(z)$ Poaceae