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

Carnivore it’s eating another animal consumer cause it consumed the animal

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.