Fill in the blank:
The source of all energy is the ______.
sun
100
Another word for a producer is a
plant
100
Wheat => Grasshopper => Mouse => Owl
What is the producer in this food chain?
wheat
100
What part of plants help them take in water for photosynthesis?
Roots
100
Name a way humans can change an ecosystem.
building, mining, farming, etc.
200
An organism that creates its own energy from the sun is a
producer
200
An organism that eats other organisms for food and energy is a
a consumer
200
Wheat => Grasshopper => Mouse => Owl
What is the first consumer in this food chain?
grasshopper
200
What organism gets energy from dead organisms?
decomposer
200
Arrange the steps of digestion to be in order:
1.acids in the stomach digest the food
2. food goes in the mouth and the teeth begin to break it down
3. nutrients from digested food move from the intestines into the bloodstream
4.waste moves from the large intestine out of the body
5.food is swallowed and travels down to the stomach
2, 5, 1, 3, 4
300
Which correctly shows the flow of energy in an ecosystem?
a) producer => decomposer => consumer
b) consumer => producer => decomposer
c) producer => consumer => decomposer
d) consumer => decomposer => producer
c) producer => consumer => decomposer
300
A consumer eats ___________________________________
other organisms
300
In a food web, Mrs. Baker sees this one link:
Grasshoppers => Frogs
Which organism eats the other?
Frogs eat grasshoppers
300
Living organisms are classified based on:
a) the way they move
c) the size of their communities
d) how they obtain their food
d) how they obtain their food
300
During photosynthesis plants give off the gas called __________________ as waste
oxygen
400
What process in the human body breaks down food to give us energy?
digestion
400
What 3 things do producers use for photosynthesis?
water, soil, and carbon dioxide
400
Ferns => Rabbit => Fox => Hawk => Fungus
Write down this food chain, and label each organism as a producer, consumer, or decomposer.
Wheat => Grasshopper => Mouse => Owl => Bacteria
Which organism is responsible for recycling nutrients?
bacteria
400
How do decomposers help ecosystems?
They break down dead organisms and release nutrients back into the soil.
500
What are many linking paths of energy called?
food web
500
The process a producer uses to make it's own food is called
photosynthesis
500
What does a food chain show us?
A path of energy through an ecosystem.
500
How do decomposers affect plants in a community?
a) by making consumers stronger
b) by creating nutrients from dead organisms
c) by turning dead organisms into living ones
b) by creating nutrients from dead organisms
500
Name two natural ways an ecosystem can change.
Forest fire, season changes, tsunami, earthquake, volcanic eruption, etc.