Chapter 3 Living Things Question Preview (ID: 44925)
Covers Living Things And Their Environment.
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An organism's habitat must provide all of the following except
a) food
b) water
c) predators
d) shelter
The nonliving parts of an ecosystem are called
a) populations
b) organisms
c) biotic factors
d) abiotic factors
A______ is all the members of one species living in a particular area
a) population
b) community
c) ecosystem
d) biosphere
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
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
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
A hawk building a nest on an arm of a saguaro cactus is an example of
a) commensalism
b) mutualism
c) parasitism
d) predation
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
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
A lack of places to build nests is an example of ______ as a limiting factor
a) abiotic
b) birth
c) ecosystem
d) space
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)
Population size generally increases if the birth rate is greater than the death rate
a) True
b) False
c)
d)
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
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