Earth has seasons because its axis is tilted.
The common cuckoo does not make a nest of its own, and they do not bring up their own young. Instead, the female lays her eggs in the nests of other birds. Each female cuckoo specialises in just one host species, and lays camouflaged eggs in that bird's nest.
I am pretty sure it is B, my second choice is D, its definitely not A or C.
I hope this helps you:)
Animal cells do not have chloroplasts so it is b
