Classify a pet dog as an autotrophs or heterotroph and as an herbivore, carnivores or omnivores explain

Pet dogs should be classified as omnivores because, since they are tamed, their body will need nutrients from both meat and plants. 

A pet dog is a heterotroph because it must obtain nutrients from eating sources of food and cannot create glucose using energy from the sun. It is an omnivore because it eats both plants and meat; Dog food is usually a combination of grains and meat mixed together. 

It is used to during sexual reproduction between humans

Idont really understand