1
Name one organism that belongs to both terrestrial and aquatic food webs.
Frog
What is an abiotic factor?
A non-living component of an ecosystem.
What is a biotic factor?
A living component of an ecosystem.
What is a habitat?
The place where an organism lives.
List the levels in the ecosystem from largest to smallest.
Biosphere, biome, ecosystem, community, population, organism.
After a forest fire, plants come back in abundance. Which limiting factor to plant growth is removed?
A,food
B,shelter
C,space
D,water
Space
What does a first-order consumer look like? Give an example.
Herbivore: example: rabbit.
An organism that performs photosynthesis?
Producer/autotroph.
In a food chain: grass, cricket, frog, snake: which organism in the food chain shown is a second-order consumer?
Frog
What is the role of plants in the carbon cycle?
Plants absorb carbon dioxide during photosynthesis.
What is the process called when bacteria return nitrogen gas to the atmosphere?
Denitrification.
What role does evaporation play in the water cycle?
It moves water from the Earth's surface to the atmosphere.
What is the process by which water vapor changes to liquid water?
condensation
What is another name for a symbiotic relationship in which both organisms benefit?
Mutualism
Give an example of a predator/prey relationship.
Lion and zebra
IN this example of a simple food chain. Acorn, squirrel, fox, mountain lion. What will most likely happen if squirrels are removed from the food chain?
The fox population will decrease.
Estuaries often have marsh grasses that act as a nursery for young fish. Which limiting factor, provided by estuaries, does it describe?
Shelter.
After a volcanic eruption, a large ecosystem takes a long time to fully recover. Which statement best explains why the development takes so long?
Soil must have been created.
: Materials such as carbon and nitrogen go through cycles. The cycling of nitrogen waste materials is mostly dependent upon the role of which factor?
Bacteria
Which description relates to an abiotic ecosystem factor?
Plants growing in the environment provide a source of shelter for other organisms.
Which best describes an abiotic limiting factor in a population?
Water
Which statements best explain what will happen to the wood due to the mushrooms being attached to the tree stump?
The mushroom will decompose the wood.
Decomposers increase the fertility of the soil and prevent easd organisms from building up in the environment. In which way do decomposers make the soil more fertile?
By removing excess minerals.
A bracket fungus grows on a dead tree and breaks it down into chemical nutrients. What terms best classify the role of a bracket fungus in this ecosystem
Decomposer
What is the source of a producer's energy in an ecosystem?
Sunlight