In the UK, a PhD stands for âDoctor of Philosophyâ, sometimes referred to as a âdoctorateâ. It is the highest level of degree that a student can achieve. At some institutions, including Oxford University, a Doctor of Philosophy is known as a DPhil.
A detritivore (also known as decomposers) is an animal that feeds on dead organisms (living things) and breaks them down into smaller molecules.Detritivores are essential in the ecosystem as they return important materials such as carbon (see carbon cycle) back into the environment. detritivore (also known as decomposers) is an animal that feeds on dead organisms (living things) and breaks them down into smaller molecules.
Herbivores are animals that eat only plants and plants alone (rabbits). Carnivores eat only meat (wolves), and omnivores eat both meat and plants (humans). an animal that eats plants   simply a non meat-eater The official definition for the word herbivore is an animal that  feeds on plants..