You are studying a fossil animal. you find that the digestive system is very long, containing multiple chambers. which diet do you infer the animal had?
a. carnivore
b. frugivore
c. herbivore
d. omnivore
e. either omnivore or carnivore

The correct option is : c. Herbivore                    

Explanation:    

Herbivores are animals that are physically and anatomically adapted to eat autotrophs such as plants, photosynthesizing bacteria and algae as the main component of its diet. Such animals are commonly called primary consumers, as they generally feed on plants.

The digestive system of a herbivores generally consists of multiple stomach chambers and along with a long digestive tract to help in the break down of plant material. Therefore, the herbivores with long and multi-chambered digestive systems are called ruminants.

Examples: cattle, camels, sheep, deer and giraffes .

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.