They are arthropods, so in that way yes, they are the same, but their environment is very different.
they both can go into a defensive mode
they both can go into a defensive mode
They use their shells
Crayfish and birds are both classified as animals. They both have specialized adaptations for their environments, such as claws for crayfish and wings for birds. Additionally, both crayfish and birds play important roles in their respective ecosystems, contributing to the balance of their habitats.
Birds and mice are vertebrates, they have warm bodies, hearts, muscles, lungs, eyes (two each), 4 limbs, digestive systems (some like the same foods)...
No, cicadas are not carnivorous. Both the larvae (nymphs) and adults feed on plant sap.
No the horrific bug that is a cicada is infact not poisonous
They are very similar and belong to the same family. Crayfish are fresh water, lobster are salt water. And they are very different in size.
Crayfish
There is no standard collective noun for cicadas. However, any noun that suits the context of the situation can function as a collective noun, for example, a chorus of cicadas, a clatter of cicadas, a din of cicadas, etc.
That depends on how much you care about the cicadas
Apparently, only male cicadas make sounds.