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1) The feeding relationships among plants and animals and among various animals in a biotic community is called a:
A) biomass.
B) food web.
C) trophic level.
D) niche.
E) symbiosis
2) Which of the following is NOT a consumer?
A) an oak tree
B) a fish
C) a deer
D) a clam
E) an insect

This includes where they may interact with other members of the same species, look for food, rest and sleep. Such an area is called a _________
A) Territory
B)Niche
C)Home Range
D)Symbiosis
E) Habitat

Can you please help me with my sciene homework.. I don’t understand it and i can’t find it in the text book
1. A _____ is the role an organism plays in the ecosystem.
a habitat
b symbiosis
c population density
d niche
2 _____ is the largest number of individuals of a species that an environment can support and maintain for a long period of time.
a Population size
b Limiting factor
c Carrying capacity
d Symbiosis
3 The number of individuals in a population is the population’s _____.
a carrying capacity
b size
c density
d spacing

1. The number of individuals in a population is the population’s _____. (1 point)
carrying capacity
size
density
spacing
2. _____ is the largest number of individuals of a species that an environment can support and maintain for a long period of time. (1 point)
Population size
Limiting factor
Carrying capacity
Symbiosis
3. A _____ is the role an organism plays in the ecosystem. (1 point)
habitat
symbiosis
population density
niche

A. the organisms may have to compete directly
B. one organism usually migrates to a new habitat
C. the two organisms will always form a symbiotic relationship
D. both organisms will disappear from the habitat
In his experiments with two species of paramecia, G. F. Gause proved that two competitors cannot coexist on the same limited resources. This outcome demonstrated the principle of
A. symbiosis
B. intraspecific competition
C. succession
D. competitive niche
When two species compete, the niche that each species ultimately occupies is its
A. competitive niche
B. exclusive niche
C. fundamental niche
D. realized niche

And these other questions too please:
What is a habitat and give an example.
Symbiosis: Define
Mutualism
Give an example:
Commensalism
Give an example:
Parasitism
Give an example:
thanks for the help. Its for biology homework but i left my book at school and its due tomorrow. Help would be greatly appreciated.