Grade 6 Ecology Unit Review: Question Preview (ID: 23280)

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Where do plants get the energy from to make food?
a) sun b) animals c) metamorphosis d) producers
Which of the following is an example of an abiotic factor?
a) plants b) temperature c) animals d) bacteria
Which statement best explains why populations will decrease once they have gone over carrying capacity?
a) the animals in the population are over-hunted by predators b) over time, the animals can not adapt to changes in their environment c) resources in an area are unlimited and do not limit the growth of a population d) Resources such as food, water, and shelter limit the growth of a population
What important role do decomposers provide for the ecosystem?
a) Decomposers turn sun energy into food energy b) Decomposers break down materials that can be used by other organisms c) Decomposers consume the sun's energy d) Decomposers have no specific role in the ecosystem
Which level of the pyramid supports the least number of organisms
a) producers b) first-level consumers c) second-level consumers d) third-level consumers
Ecology is
a) the study of all living things except humans b) the study of pollution c) the study of how living things interact with each other and their environment d) protecting the environment
2. What is the difference between a biotic factor and an abiotic factor?
a) Biotic factors exist in an ecosystem, but abiotic factors do not. b) Biotic factors include elements like weather and temperature, while abiotic factors produce carbon dioxide and oxygen c) Biotic factors are living things and abiotic factors are non-living things. d) Biotic factors are non-living things and abiotic factors are living things.
Which of the following are biotic factors in an ecosystem?
a) rain, sunlight, and plants b) plants, animals, and bacteria c) temperature, animals, and plants d) animals, minerals in the soil, and rain
A group of owls living in the same area and competing for resources is called a
a) habitat b) population c) species d) community
Which factor would most directly impact the frog population in a pond ecosystem?
a) dragonfly population b) amount of sunlight c) rabbit population d) deer population
Which of the following is not a limiting factor for populations?
a) space b) water c) weather d) time
The first organism in a food chain is always a(n)
a) consumer b) decomposer c) producer d) scavenger
The interaction of all of the different populations is a(n)
a) environment b) organism c) population d) community
The source of all energy for a food web is
a) a producer b) the sun c) a consumer d) a scavenger
As you move up the energy pyramid, the amount of available energy
a) remains the same b) increases c) decreases d) is destroyed
Which is a carnivore?
a) grass b) spider c) bear d) deer
Which of the following roles do bacteria and fungi play in an ecosystem?
a) producer b) consumer c) scavenger d) decomposer
The level of an energy pyramid with the least energy available is
a) third-level consumers b) second-level consumers c) first-level consumers d) producers
Fish are an example of which factor in a pond environment
a) abiotic b) biome c) producer d) biotic
Which statement BEST describes the carrying capacity of an area?
a) The largest population an area can support. b) The average population an area can support. c) The small population an area can support. d) The total population an area can support.
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