Unit 3.3 Flashcards
What is the definition of Trophic Levels?
Trophic Levels split up different species based on their role in the environment and how they compare to one another.
What is the definition of Autotroph?
An Autotroph is an organism that can produce and make its own food.
What is the definition of Heterotroph?
A Heterotroph is an organism that relies on another substance for its food supply.
What is the definition of Herbivore?
An herbivore is a species that only eats plants
What is the definition of Omnivore?
An Omnivore is a species that eats both plants and meats.
What is the definition of Carnivore?
A Carnivore is a species that eats only meat.
What is the definition of Detrivore?
A Detrivore is a species that eats dead material or organic material.
What is the definition of a Keystone Species?
A Keystone species is a species that is extremely important to the ecosystem and without it, the ecosystem wouldn’t survive.
What is the definition of a Trophic Cascade?
A Trophic Cascade is when you have a predator controlling the distribution of resources causing many indirect effects.
What is the difference between a food web and a trophic cascade?
A food web shows just the relationship between each organism and who eats who, while a trophic cascade shows the direct and indirect affects also.
What kind of organisms would be in the first level of a food web?
The only organisms that would be in the first level would be the producers. These are organisms that make their own food.
What kind of organisms would be in the second level of a food web?
The organisms on the second level would be organisms that eat the producers. These organisms are herbivores because they eat the producers.
What kind of organisms would be in the third level of a food web?
Organism in the third level eat the second level organisms which means they eat meat, but they can also eat plants too.
