Matter
Food Webs
Population Growth
Energy
100
Matter is...
Stuff
100
Give three examples of producers
Any photosynthetic organisms
100
What is a population limiting factor? (definition)
Something that limits the growth of a population
100
A rabbit eats some grass. What percentage of the grass's energy does the rabbit get?
10%
200
What do decomposers do for an ecosystem?
Break down dead organisms
200
What kind of consumer eats a secondary consumer?
A tertiary consumer
200
List three population limiting factors
Answers may include:
Limited food, limited water, disease, space, shelter, competition, weather, etc.
200
Phytoplankton produces 550 Kcal of energy. How much does the zooplankton get after eating them?
55 Kcal
300
What do recomposers do?
Use broken down matter to build themselves up
300
What role does the owl have in this ecosystem?
A secondary consumer
300
What happens to a population if its death rate is greater than its birth rate?
It decreases
300
If the green plant produced 789 Kcal of energy, how much does the spider get after eating the grasshopper?
7.89 Kcal
400
Give an example of a recomposer
Answers may vary
400
True or False: the organism at the top of the food web is always a tertiary consumer
False!
400
What happens to a population if its emigration rate is greater than its immigration rate?
It decreases
400
The owl gets 0.47 Kcal from eating the woodmouse. How much did the grass produce?
470 Kcal
500
Use arrows to show how matter will move between the following organisms:
Tree
Giraffe
Lion
Vulture
Answers may vary, but arrows should stay consistent in size and recycle back to the tree
500
Create a food web with the following organisms:
Grasses
Shrubs
Rabbit
Deer
Fox
Bear
Answers may vary
500
What is the carrying capacity of this deer population?
80
500
Use arrows to show how energy will move between the following organisms:
Tree
Giraffe
Lion
Vulture
Answers may vary, but the arrows should decrease in size and not recycle back to the producer