What is the definition of sympatric speciation?

The response is the basis for vaccination. primary secondary tertiary none of the above

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

What do your cells need to live? a. carbon dioxide b. carbon c. air d. oxygen