autotroph
Self nourishing or producer
Define heterotroph
other nourishing, consumer
What is a food web?
What is a food chain?
Define an energy pyramid.
A model/diagram that shows the amount of energy available at each feeding level.
Autotroph example
Heterotroph example
rabbit, praying mantis, mountain lion
True or False?
Food webs show only one type of consumer.
False.
Food webs show a variety of producers and consumers in an ecosystem.
True or False?
A food chain starts with the Sun.
True. The sun gives energy to producers.
In an energy pyramid, which level has the most available energy?
The producer level.
Where are autotrophs in a food chain?
Where are heterotrophs in the food chain?
True or False?
Food webs don't show competition for food sources.
False.
Which example shows energy flow in an ecosystem?
A)Goldfinch gets energy from barredowl.
B)Herbivores provide energy from ratsnake.
B) Ratsnakes eat herbivores to get energy.
Complete the statement:
In an energy pyramid, energy ______ as you move up the pyramid.
decreases
Who eats autotrophs?
Primary, secondary, tertiary
Which two primary consumers compete for eating a producer?
A) rabbit and goat
B)wolf and cricket
A)rabbit and goat both eat producers
Does a food chain show competition for food?
No, food chains show energy flow from one organism to the next in an ecosystem.
Where are decomposers found on an energy pyramid?
Decomposers can be found on all levels of the energy pyramid.
What trophic level do you find autotrophs?
Producer
True or False?
Heterotrophs have more energy available than autotrophs.
False. The most energy is stored in autotrophs - the producer level.
Fill in the blank:
Food webs show ___________between organisms in an ecosystem.
relationships
True or False?
Food chains end with consumers.
True. Food chains show organisms that eat other organisms in an ecosystem.
True or false?
Energy is lost as you move up the energy pyramid.
True. Energy is released in each level of a food pyramid.