Energy in an Ecosystem
Food Web
Relationships in an Ecosystem
Biodiversity
Wildcard
100
Where does most of the energy in ecosystems on earth come from?
The Sun
100
What is one direct relationship in this food web?
Answers Vary
100
An ant species defends a plant, and in exchange the plant provides food for them. This is a:
mutualism
100
Which has more biodiversity - a field (A) with 1000 of the same species, or (B) 50 each of 5 different species?
B
100
Name 3 biotic factors.
Answers vary
200
Which group of species converts all of the energy from the Sun to be useful for the ecosystem?
Producers
200
What is one indirect relationship in this food web?
Answers Vary.
200
What is a commensalism?
A relationship where one species benefits and the other is not changed.
200
This is a measurement of how many species are in an area.
What is biodiversity?
200
Name 3 abiotic factors.
answers vary
300
How much energy is lost at each step of the energy pyramid?
90%
300
What does a primary consumer eat?
Producers
300
Which relationship is the only one where both species are negatively impacted by it?
Competition
300
True or false: a healthy ecosystem would have a high amount of biodiversity.
True
300
How much energy moves on to each step of the energy pyramid?
10%
400
Which group on the energy pyramid has the most biomass?
Producers
400
Explain how a predator (that eats meat only) can change the population of producers.
By eating primary consumers, the predator can indirectly increase the amount of producers.
400
A vine grows on a bush, preventing the bush from getting sunlight. The vine gets all the sunlight. This is a:
parasitism
400
Ecosystems that provide valuable ecosystem services generally have a (low, high) amount of biodiversity
High
400
Explain how abiotic factors can limit a species' population.
Without access to water, soil, land, etc. the species would be unable to sustain a population
500
Explain the difference between how matter and energy go through an ecosystem.
Matter is recycled (water cycle, carbon cycle, etc. ) and energy flows ( through the pyramid).
500
This kind of species, like a lion, hunts other animals but is not hunted by any other animals.
What is an apex predator?
500
Define the difference between a mutualism and a commensalism.
both species benefit in a mutualism, one benefits / one is neutral in a commensalism
500
Biodiversity is important to this ecosystem that helps protect Hoboken from floods and provide us clean drinking water.
What is the wetlands ecosystem?
500
Explain how species can change the abiotic factors of an ecosystem.
Species can over-use resources, cause erosion, prevent disasters like fires by removing fuel, etc.