Is a rainbow trout an autotroph or a heterotroph?

Answer 1

Autrotrophs are mostly plants who can make their own food from sunlight in a process called photosynthesis. While a heterotroph creature cannot make its own food and most depend on other organisms for food, which is by eating them. I am pretty sure that a herrinbg gull is a heterotroph, since it obviously cannot get it s food from the sun. Hope this helps.

Answer 2

Autotrophs are organisms which use simple substances to make more complicated ones, drawing in energy from the outside to do so, or more simply, organisms which make food. The commonest examples are green plants. Higher animals like salamanders are all heterotrophs, that is they take in food from the outside.