Identify the white blood cells.

All the carnivores have

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

Which one of the following lists contains only mesodermal structures?

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 : .....

Which structure is common between an earthworm and a cockroach?