Food Webs
Fossil Order
Fossils from the past
Effects of a New Species
Food Chain
100
Every food web and chain begins with the ____.
Sun
100
B layer- fern
C layer- seashell
D layer - fish bone
E layer - dinosaur bone
Which layer has the youngest fossil?
Layer B
100
Fossils tell us _________ from the past.
Clues
100
Look at the food chain.
sun grass grasshopper mouse snake hawk
What would be the effect if a fox was introduced and started eating the mice also. The grasshopper would
increase or decrease?
Increase
100
Look at the food chain.
sun grass grasshopper mouse snake hawk
Who eats the mouse?
Snake
200
Every food web and food chain ends with _______.
decomposers
200
B layer- fern
C layer- seashell
D layer - fish bone
E layer - dinosaur bone
Which layer has the oldest fossil?
Layer E
200
What type of fossil is this from the past? A. fern
B. trilobite
B. trilobite
200
Look at the food chain.
sun tree grasshopper mouse snake hawk
What would be the effect if an emerald ash borer was introduced. Who would be affected the most?
Tree
200
Look at the food chain.
sun grass grasshopper mouse snake hawk
Who eats the grass?
grasshopper
300
A plant is the only organism that can make its own ____.
Food
300
B layer- dinosaur bone
C layer- seashell
D layer - fish bone
E layer - fern
True or False: Layer D is older than layer E
False
300
True or False
A fossil found in a deeper layer of earth than the one on top of it is ____.
Older or younger
Older
300
Look at the food chain.
sun grass grasshopper mouse snake hawk
What would happen if the hawk totally disappeared? The snake would _____.
Increase
300
Look at the food chain.
sun grass grasshopper mouse snake hawk
The snake would be a _________.
A. producer B. consumer C. decomposer
B. consumer
400
Organisms that eat plants, animals, or both is called a _____.
consumer
400
B layer- fern
C layer- seashell
D layer - fish bone
E layer - trilobite
Which layer was formed first?
Layer E
400
What type of fossil looks like a leaf?
A. bone B. seashell C. fern
C. Fern
400
Look at the food chain.
sun trees deer wolf hawk decomposers
Who would be affected if a forest fire destroyed the forest. The ____ would decrease.
Deer
400
Look at the food chain.
sun grass grasshopper mouse snake decomposer
Which of these would be decomposer that breaks down wastes and remains?
A. mushrooms B. snake C. fish
A. mushrooms
500
An organism's niche or role which is to hunt and kill is called a _________.
Predator
500
B layer- fern
C layer- seashell
D layer - fish bone
E layer - dinosaur bone
Which layer was formed last?
Layer B
500
If a fish fossil was found deep inside the earth, but now it is grassy land, what does that tell you about the area years ago?
It was an ocean at one time or had water there
500
If a beaver came along and built a dam in the middle of the stream, who benefit most from its dam?
A. trees B. ducks C. birds
B. ducks
500
Look at the food chain.
sun grass grasshopper mouse snake hawk
Who is always at the top of the food chain?
humans