No, they have endoskeletons like any other bird (and you, too).
No - they are like us. They have bony skeletons on the inside that support their form. An example of an animal with an exoskeleton would be a crab, where their shell, on the outside, is what supports their form. Others are insects, shrimp, lobster and oysters. There are many more.
Ostriches, like all other birds and indeed, like all other vertebrates, have an endoskeleton, meaning an internal skeleton, rather than an exoskeleton or shell. Insects have exoskeletons. Birds don't.
Presence of chitin on the outer surface of the insect body
No, all birds are vertebrates, meaning that they have an internal skeleton just like you and me.
Yes, like all birds they do have bones.
Moths are arthropods because they have jointed legs and a chitin exoskeleton and birds are chordata because they have a backbone and nervous system.
Lady bugs (lady birds, lady beetles), like all other insects have an exoskeleton meaning the skeleton is on the outside.
Usually no.
To attract other birds- females in mating time To scare or impress Songs for birds are like dreams for us So that other birds know of their presence
they have exoskeleton
Aim of an experiment to show that starch is produced in the presence of sunlight
Yes; many cnidarians have an exoskeleton.
An indicator shows the presence of another substance.