Biology 2.2 Flashcards
1
Q
Autotroph
A
An organism that obtains energy from sunlight or inorganic substances to produce food
2
Q
Heterotroph
A
An organism that obtains energy by consuming other organisms
3
Q
Herbivore
A
Heterotroph that only eats plants
Ex: cows, rabbits
4
Q
Carnivore
A
Heterotrophs that prey on other heterotrophs
Ex: lions, wolves
5
Q
Omnivore
A
Organisms that eat both plants + animals
Ex: bears, humans
6
Q
Detritivore
A
Organisms that
a) eat fragments of dead matter
b) return nutrients to the soil, air, and water
c)
7
Q
Trophic level
A
Each step in a food chain or food web
8
Q
Food chain
A
A simple model that shows how energy flows through an ecosystem
9
Q
Food web
A
Model representing the:
Many interconnected food chains + pathways in which energy flows through group of organisms.
10
Q
Detrivore
A
11
Q
Decomposer
A
