Chapter 3 Living Things Question Preview (ID: 44925)


Covers Living Things And Their Environment. TEACHERS: click here for quick copy question ID numbers.

Both species benefit in the type of symbiosis called mutualism
a) True
b) False
c)
d)

Bees and flowers are biotic factors in an ecosystem
a) True
b) False
c)
d)

An ecologist counts 75 cardinals in an area measuring 15 square kilometers. what is the population density of the cardinals?
a) 75 per square kilometer
b) 15 per square kilometer
c) 5 per square kilometer
d) 60 per square kilometer

Population size generally increases if the birth rate is greater than the death rate
a) True
b) False
c)
d)

An insect looks like a leaf, so it blends in with its surroundings and is hard for predators to see. This is an example of commensalism
a) True
b) False
c)
d)

A lack of places to build nests is an example of ______ as a limiting factor
a) abiotic
b) birth
c) ecosystem
d) space

Nutrients in the soil are considered ________ factors.
a) abiotic
b) birth
c) ecosystem
d) space

All the biotic and abiotic factors in an area together make up an ________
a) abiotic
b) birth
c) ecosystem
d) space

The main way that populations increase in size is through the _______ of offspring.
a) abiotic
b) birth
c) ecosystem
d) space

The part of an ecosystem where an organism lives and feeds is called the organism's what?
a) abiotic
b) birth
c) ecosystem
d) habitat

A hawk building a nest on an arm of a saguaro cactus is an example of
a) commensalism
b) mutualism
c) parasitism
d) predation

All the following are examples of limiting factors except
a) food
b) rocks
c) space
d) weather conditions

which of the following is an example of a predator adaptation?
a) a porcupine's needles
b) a shark's powerful jaws
c) a frog's bright colors
d) a plant's poisonous chemicals

If you count 20 beetles in a garden measuring 5 square meters, the population density of the beetles is
a) 100 beetles per square meter
b) 20 beetles per square meter
c) 5 beetles per square meter
d) 4 beetles per square meter

A group of antelope leaving the herd in search of better grassland is an example of
a) immigration
b) emigration
c) increasing birth rate
d) decreasing birth rate

An organism's habitat must provide all of the following except
a) food
b) water
c) predators
d) shelter

A______ is all the members of one species living in a particular area
a) population
b) community
c) ecosystem
d) biosphere

The nonliving parts of an ecosystem are called
a) populations
b) organisms
c) biotic factors
d) abiotic factors

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