The ultimate source of energy for living organisms.
What is the sun?
100
Which is a symbiotic relationship where both partners benefit?
a. commensalism
b. mutualism
c. parasitism
d. decomposition
What is b. mutualism?
100
A community plus the nonliving factors with which it interacts is called a(n)
What is an ecosystem?
100
Which of the following is an example of competition in an ecosystem?
a. a flea gets a blood meal from a rabbit
b. a rabbit eats grass and plants
c. kudzu grows over other trees and plants and prevents them from getting sunlight.
d. zebra mussels attach to the bottom of a boat
What is c.
100
Consumers are also called ______________ because they must depend on other organisms for their food.
What is heterotroph?
200
Which of the following is not considered a heterotroph?
a. herbivore
b. carnivore
c. decomposer
d. plant
What is d. plant?
200
A lichen is a combination of fungus and algae that lives on the sides of trees, rocks, and other materials. The fungus provides the algae with water and minerals and the algae uses the water and minerals to make food for both organisms. What type of symbiotic relationship does the lichen represent?
What is mutualism?
200
Organisms of the same species that live in the same place at the same time
What is population?
200
Animals that hunt other animals to eat are called .
What is predator?
200
A group of very similar organisms that can mate and produce fertile offspring.
What is species?
300
autotroph ---> herbivore ---> carnivore ---> decomposer
What is the secondary consumer?
What is carnivore?
300
The harmed species in a parasitic relationship is called:
What is host?
300
the portion of earth where living organisms can survive
What is biosphere?
300
Which of the following is an example of a density dependent factor that would impact a population of deer?
a. hunting season
b. usually harsh, cold winter
c. forest fire
d. number of edible leaves
What is number of edible leaves (d)
300
The nonliving parts of an ecosystem.
What is abiotic factor?
400
autotroph ---> herbivore ---> carnivore ---> decomposer
This diagram is called a
What is food chain?
400
A close relationship between two different species of organisms living together.
What is symbiosis?
400
What are the levels of ecological organization in order from smallest to largest?
What is organism, population, community, ecosystem, biosphere?
400
Which of the following is an abiotic factor that could limit the fish population in a pond?
a. the size of the pond
b. the amount of zooplankton
c. the number of water snakes
d. the presence of a bacterial disease
What is the size of the pond (a)?
400
A symbiotic relationship in which only one species benefits but the other is neither helped nor harmed.
What is commensalism?
500
tree leaves ---> caterpillars ---> birds ---> hawks
Suppose 3,000 calories of energy are available in the tree leaves. About how many calories can be utilized by the birds?
What is 30 calories?
500
A clownfish lives in the safety of a sea anemone. The anemone is not hurt but if an anemone-eating species tries to attack the clownfish chases the predator away. This is an example of what symbiotic relationship?
What is mutualism?
500
The levels of organization in order from smallest to largest beginning with atom.
What is atom, molecule, macromolecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
500
All of the following are density dependent factors that limit animal populations EXCEPT
A.weather
B.food competition
C.predation
D.birthrate
What is A. weather?
500
The way that energy is transferred to each trophic level is often shown in an ____________ _______________.