3 2What three groups can animals be divided into based on how they get energy?producersconsumersdecomposers
4 3Organisms that use sunlight directly to make food are called __________.producers
5 4Producers use a process called ________ to make food.photosynthesis
6 5Herbivores, carnivores, and omnivores that eat other organisms are known as _________.consumers
7 6A consumer that eats only plants is a(n) _________.herbivore
8 7A consumer that eats only animals is a(n) _________.carnivore
9 8 A consumer that eats both plants and animals is a(n) __________. omnivore
10 9 An example of a herbivore is a(n) ______. grasshopper prairie dog bisonetc.
11 10An example of an omnivore is a(n) _____.grasshopper mouse
12 Yes…There is such a thing as a grasshopper mouse
13 11 Omnivores that eat dead plants and animals are called __________. scavengers
14 12Organisms that break down dead organisms to get energy are called _______.decomposers
15 13 List two decomposers. fungi bacteria other organisms that break down food
16 14A simple diagram that shows how energy in food flows from one organism to another is a(n) ___________.food chain.
17 15A food chain does not show energy connections in nature as accurately as a food ___________ does.web
18 16In food webs and food chains, does the arrow point toward the plant or animal doing the eating or the one that is eaten?toward the one doing the eating
19 17List the two main food webs on Earth.landaquatic
20 18Why isn’t all of the energy that grass gets from sunlight passed on to the prairie dogs that eat the grass?The grass uses most of the energy for its own life processes and only stores some of the energy.
21 19The diagram that shows an ecosystem’s loss of energy at each level of the food chain is known as ______________.energy pyramid
22 20When gray wolves were wiped out as the wilderness was settled, what happened to the grass and elk in some areas?There were a lot elk, since the wolves did not eat them, and they overgrazed the grass, so it was almost gone.