Question

A bird stalks, kills, and then eats an insect. Based on its behavior, which pair of ecological terms describes the bird?
herbivore, decomposer
producer, heterotroph
carnivore, consumer
autotroph, herbivore

Answer 1

psssst its C :D

Answer 2

c. carnivore, consumer

because it eats meat (carnivore) and it has to rely on other organisms for food (consumer)

in case you need definitions:
herbivore - eats plants
decomposer - feeds of off dead things (ie, mushrooms)
autotroph - makes its own food (ie, plants)