Some butterflies, such as the Monarch butterfly, are migratory. Their caterpillars feed on particular wildflowers and their populations are affected by the health of the ecosystem. What type of species are they?
A. An endangered species
B. An alien species
C. An indicator species
D. A keystone species

Question

Some butterflies, such as the Monarch butterfly, are migratory. Their caterpillars feed on particular wildflowers and their populations are affected by the health of the ecosystem. What type of species are they? 
	A.	An endangered species
	B.	An alien species
	C.	An indicator species
	D.	A keystone species

anonymous · Answer

A. is my choice

anonymous · Answer

Eagles eat fish. What type of organism are they? 
	A.	Detritivore
	B.	Herbivore
	C.	Decomposer
	D.	Carnivore