5th Grade, Chapter 4- Ecology: Question Preview (ID: 32253)

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Where are almost all nutrients in a rainforest?
a) in the soil
b) in living things
c) in the air
d) in the water

Which statement is true in a tropical rain forest?
a) the amount of daylight is about the same everyday
b) The temperature is about the same throughout the year
c) There are no short winter days
d) all of the above

What is a niche?
a) the place where a species lives
b) the role of a species in an ecosystem
c) what a species eats
d) how a species uses resources

In the rain forest, howler monkeys and leaf cutter ants are part of the same
a) population
b) species
c) community
d) niche

The process by which plants use sunlight to make sugar from water and carbon dioxide is called
a) photosynthesis
b) pollination
c) scavenging
d) fertilization

An organism that helps to break down and decay dead organisms and the wastes of living organisms is called
a) a carnivore
b) scavenger
c) decomposer
d) herbivore

why does the amount of available energy decrease as you move up the energy pyramid?
a) less sunlight is available to the organisms at the top of the pyramid
b) Each organism uses some energy for its life processes and some is lost as heat
c) The organisms at the top of the pyramid generate less heat
d) The organisms at the top of the pyramid are smaller in size

How is a food web different from a food chain?
a) a food web includes consumers and produces
b) a food chain contains only organisms of the same species
c) a food web shows how energy is being released
d) a food web shows that one organism might be food for several different organisms

A food chain is a diagram of how
a) communities are connected
b) energy and nutrients pass among organisms in an ecosystem
c) producers make food
d) an ecosystem develops and changes

What do consumers give off that producers need?
a) carbon dioxide
b) oxygen
c) sugars
d) all of the above

Bacteria in the soil can change nitrogen compounds into
a) nitrogen gas
b) oxygen
c) proteins
d) sugar

How does water cycle through the nonliving part of the ecosystem?
a) water returns to the ecosystem through an organisms waste
b) roots take in water from the soil
c) when an organism dies, water is recycled in the ecosystem
d) water evaporates from the land and oceans and forms water vapor

Which of these can be found in a tropical rain forest?
a) water
b) sunlight
c) air
d) all of these

In an energy pyramid
a) the organisms in each level eat those in the level below them
b) the amount of available energy increases as you move up from one level to the next
c) producers are at the top
d) the smallest organisms are at the top

Water vapor is formed when
a) water evaporates from the land and bodies of water
b) it rains
c) it snows
d) lightning strikes

food chains begin with
a) consumers eating other consumers
b) consumers eating producers
c) grafting
d) producers that get energy from the sun

Trees in the rain forest stop most of the sunlight before it can reach the ground
a) true
b) false

Howler monkeys spend most of their time on the ground
a) true
b) false

Consumers that get energy from eating other consumers are called herbivores

Consumers that eat only plants are called herbivores
a) true
b) false

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