Ecosystem vocabulary
Energy flow
Symbiotic relationships
Predator/prey relationships
Invasive species/biodiversity
100
What is one example of a biotic factor in a forest ecosystem?
trees, any animal, mushrooms...
100
What is the ultimate energy source for all ecosystems?
The Sun
100
Which type of symbiosis describes a relationship where both species benefit?
Mutualism
100
True or false: A lack of predators in an ecosystem can cause prey populations to increase drastically, leading to a lack or resources in the ecosystem
True!
100
What is an invasive species?
A non-native species that can cause harm to the ecosystem that it invades
200
Give an example of an abiotic factor in a desert ecosystem
Sand, rocks, air, sun
200
The grasshopper population is low this year. Will the frog population increase or decrease as a result?
Decrease
200
Which type of symbiosis describes a relationship where one species benefits, and the other is unaffected?
Commensalism
200
True or false: Predator and prey populations act as a form of population control for each other.
True!
200
Ecosystem A has 100 different species living in it and ecosystem B has 200 different species living in it. Which ecosystem has more biodiversity?
Ecosystem B
300
Donkeys and horses can reproduce, but their offspring, the mule, cannot. Would Donkeys and horses be considered members of the same species?
No!
300
The snake population decreases due to snakes being hunted. How will this impact the bird population?
It will increase
300
What type of symbiosis describes a relationship where one species benefits, and the other is harmed?
Parasitism
300
When the prey population increases, what happens to the predator population?
It also increases
300
List two ways in which invasive species can cause harm to ecosystems
1. stealing resources rom native species
2. Causing damage to property
3. disrupting energy flow
400
A role/job an organism fulfills in an ecosystem is know as a...
Niche
400
Name a tertiary consumer in the food web.
Hawk, Snake, Owl
400
A bee gets nectar from a flower, and the bee helps to spread the flower's pollen so it can reproduce. What type of symbiotic relationship is this?
Mutualism
400
Using the graph, explain what happens to the predator population when the prey population decreases
the predator population also decreases
400
Invasive species often overcrowd and outcompete native species in the ecosystems they invade. Will this increase or decrease biodiversity?
Decrease
500
Explain the difference between a food chain and a food web.
A food chain contains one single pathway of energy flow through an ecosystem. A food web contains multiple pathways.
500
What percentage of total energy will be available to the rabbits (primary consumers?)
10% of total energy
500
A tapeworm is a parasite that can attach to the intestines of many mammal species and steal nutrients from the mammal, weakening it. What type of symbiotic relationship describes the relationship between a tapeworm and a mammal?
Parasitism
500
Using the graph, explain what happens to the prey population once the predator population starts to increase
The prey population will decrease
500
Describe 3 negative impacts zebra mussels can have in the Great Lakes
1. Stealing nutrients from native species
2. Causing damage to property
3. Cutting feet/harming people
4. Sticking to other animals and preventing them from feeding