Energy Transfer
What happens to energy as it moves up the food chain?
The energy decreases.
What organism is at the base of every energy pyramid?
Producers
_________ are the things that organisms consume to be able to carry out bodily functions.
Nutrients
Which things can make their own food?
Autotrophs/Producers
What do arrows in a web indicate?
Energy Transfer
Which trophic level has the greatest amount of energy to use?
A) Producers
B) Consumers
C) Decomposers
D) Water
A) Producers
True or False
A nutrient cycle is the way nutrients move through an ecosystem?
True
Which of the following is considered a decomposer?
A) Algae
B) Citrus Tree
C) Rabbit
D) Fungus
D) Fungus
What is the main source of energy for all food chains?
The Sun
What is the organism directly above Secondary consumers?
Tertiary Consumers
How do decomposers mainly help the ecosystem?
Release nutrients back to environment.
Which organism consists mainly of animals, and eat primary consumers?
Secondary Consumers
What happens when an ecosystem loses a top predator?
A) Food webs stay the same
B) Prey Populations Grow
C) Producers make food faster
D) Decomposers stop working
B) Prey Populations Grow
When energy passes through one trophic level to the next, one ___ of it is kept, and ___ of it is lost due to _____.
10%, 90%, heat
___________ is how plants make light energy into chemical energy.
Photosynthesis
True or False
Omnivores eat meat only.
False
Eat whatever they can (both plants and meat).
True or False
After energy has cycled through an ecosystem, it returns to the Sun.
False
What is the 10% rule?
Only about 10% of the energy from one trophic level gets passed on to the next.
One way Carbon enters the atmosphere is through-
A) plants being eaten
B) photosynthesis
C) respiration
D) clouds
C) respiration
Which is the correct order of the ecosystem?
A) tree, deer, eagle, snake
B) deer, snake, eagle, tree
C) eagle, snake, deer, tree
D) tree, deer, snake, eagle
D) tree, deer, snake, eagle