Ecology Ch 1: Population And Communities: Question Preview (ID: 26575)

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A relationship that involves one organisms living with, on, or inside another organism and harming it is
a) parasitism
b) commensalism
c) symbiosis
d) mutualism

A relationship in which both species benefit.
a) mutualism
b) parasitism
c) symbiosis
d) commensalism

A(n) _________________ is the smallest unit of an ecosystem.
a) organism
b) population
c) community
d) habitat

In ________________ succession there are already plants in the ecosystem.
a) secondary
b) primary
c) third
d) fourth

A relationship in which one species benefits and the other neither benefits nor is harmed is
a) commensalism.
b) mutualism.
c) symbiosis
d) parasitism

The __________ rate will increase the size of the population.
a) birth
b) death
c) new
d) old

An ecosystem includes
a) all of the biotic and abiotic factors.
b) all of the biotic factors.
c) all of the abiotic factors.
d) all of the other factors.

Biotic factors in the ecosystem include
a) anything living or once living.
b) anything that is not living.
c) anything in the air.
d) anything in the sky.

What is an organism's habitat?
a) The part of the ecosystem where an organism lives and feeds
b) The part of the ecosystem where an organism dies
c) The part of the ecosystem where an organism preys upon its food
d) Any part of the ecosystem

A shark's powerful jaws is an example of
a) adaptation.
b) predation.
c) commensalism.
d) using it's resources.

Which of the following is an example of commensalism?
a) A hawk building its nest
b) A fish swimming in a pond
c) A human eating at McDonalds
d) A mouse running in a circle

The niche of an organims is
a) it's role in his habitat.
b) how it finds water.
c) how it finds food.
d) how well it is liked.

Which of the following is not a limiting factor?
a) soil
b) food
c) space
d) climate

An example of emigration is when
a) animals move to find food.
b) animals stay in their habitat.
c) animals try to find their friends.
d) animals die.

An organism's habitat doesn't need
a) predators.
b) water.
c) food.
d) shelter.

Abiotic factors are
a) nonliving parts of an ecosystem.
b) living parts of an ecosystem.
c) all of the parts of an ecosystem.
d) only specific parts of the ecosystem.

Plants use abiotic factors such as water, carbon dioxide, and
a) sunlight.
b) salt.
c) bacteria.
d) soil.

All members of one species living in a particular area is a
a) population.
b) habitat.
c) ecosystem.
d) community.

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