Food Webs
Energy Pyramids
Biodiversity
Population Sizes
Symbiotic Relationships
100
Name the producers on this food web
Carrots, Grasses, Grains
100
Where does all the energy in an ecosystem originally come from?
The sun
100
Define biodiversity
Variety of life/species in a given ecosystem
100
Define immigration
Moving into an ecosystem
100
Define mutualism
When two species benefit from one another
200
Name one of the primary consumers
Rabbits, mice, grasshoppers, or birds
200
Which level stores the most energy?
Producers
200
Which ecosystem has higher biodiversity?
Left side
200
Define emigration
Leaving (exiting) an ecosystem
200
Define parasitism
When one species benefits and the other one is harmed
300
What would happen to the rabbits if the grasses were diseased?
They would decrease
300
Which organism is the apex predator?
Tertiary consumers - Snakes
300
Why is it better for an ecosystem to have higher biodiversity?
They are more stable and can more easily adapt to changes
300
In a given ecosystem, 20 rabbits immigrate in every week. 7 rabibts emigrate each week. By the end of the month, will the population increase or decrease?
Increase
300
Define commensalism
When one species benefits and the other is unaffected
400
If an invasive plant species was introduced, name one species it would compete with
Carrots, grasses, grains
400
What is the role of decomposers?
Break down dead organisms and recycle nutrients
400
How can an invasive species disrupt biodiversity?
Taking over native species resources --> causes an imbalance in the ecosystem
400
Based on this graph, explain one way humans could have impacted the green sea turtle population
Answer should be anything that cause them to increase
400
Bees get nectar for nutrients from flowers, and then help the flowers pollinate and reproduce. What type of relationship is this?
Mutualism
500
How would the grasshoppers be affected if the rabbit population grows?
They would decrease
500
If the grasshoppers stored 500 J of energy, how much would the tertiary consumers get?
5 J
500
Explain one way that human activity can disrupt biodiversity in an ecosystem
Hunting, overharvesting, deforestation, introducing invasive species, causing climate change, etc.
500
Antelope are herbivores. Wild horses and domestic sheep also live in their area eat the same types of grasses. Coyotes and bobcats in the area prey on the antelope. Which would most likely increase the carrying capacity for the antelope?
A. a ban on hunting bobcats in the area
B. a new law that allows more sheep to be raised in the area
C. a dry winter that decreases the number of plants that grow in the area
D. a viral disease that decreases the population size of the wild horses in the area
D. a viral disease that decreases the population size of the wild horses in the area
500
Tree frogs use plants as protection, and the plants are not aware. What type of relationship is this?
Commensalism