Savvas 7th Grade Ecosystems and Biomes Test
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Last updated over 2 years ago
29 questions
1
An organism that can make its own food is called a
An organism that can make its own food is called a
1
In which process do producers use carbon from carbon dioxide to produce other carbon-containing molecules?
In which process do producers use carbon from carbon dioxide to produce other carbon-containing molecules?
1
The nonliving parts of an ecosystem are called
The nonliving parts of an ecosystem are called
1
If you were to make a physical model of the carbon cycle, what shape would the model take on?
If you were to make a physical model of the carbon cycle, what shape would the model take on?
1
The number of different species in an area is referred to as its
The number of different species in an area is referred to as its
1
A group of land ecosystems with similar climates and organisms is called a(n)
A group of land ecosystems with similar climates and organisms is called a(n)
1
Ponds and rivers are two types of
Ponds and rivers are two types of
1
The many overlapping food chains in an ecosystem make up a(n)
The many overlapping food chains in an ecosystem make up a(n)
1
Which biome is extremely cold and dry?
Which biome is extremely cold and dry?
1
If all members of a species disappear from Earth, the species is said to be
If all members of a species disappear from Earth, the species is said to be
1
The mating of California condors in zoos is an example of
The mating of California condors in zoos is an example of
1
If a kestrel eats a mouse that eats grass, the kestrel is a
If a kestrel eats a mouse that eats grass, the kestrel is a
1
A diagram that shows how much energy is available at each feeding level in an ecosystem is a(n)
A diagram that shows how much energy is available at each feeding level in an ecosystem is a(n)
1
Bacteria and fungi are known as _______ because they break down the remains of organisms.
1
The soil that is frozen all year, called permafrost, is found in a _______ biome.
1
Water vapor turns into droplets of liquid water in the process of_______
1
Certain bacteria change nitrogen gas into a usable form in a process called_______
1
Setting aside a marsh as a wildlife refuge is an example of the _______ approach to protecting biodiversity.
1
The part of an ecosystem where an organism lives and feeds is called the organism’s_______
1
The deciduous forest biome is typically populated by many grasses, along with a few shrubs and trees.
The deciduous forest biome is typically populated by many grasses, along with a few shrubs and trees.
1
Organisms that capture the energy of sunlight to make food are called producers.
Organisms that capture the energy of sunlight to make food are called producers.
1
Second-level consumers may be either carnivores or omnivores.
Second-level consumers may be either carnivores or omnivores.
1
Producers release the gas oxygen as a product of photosynthesis.
Producers release the gas oxygen as a product of photosynthesis.
1
Oak, maple, and beech trees, which lose their leaves each year, are typically found in a boreal forest.
Oak, maple, and beech trees, which lose their leaves each year, are typically found in a boreal forest.
1
The arrow in a food chain represents the energy.
The arrow in a food chain represents the energy.
2
Describe two roles bacteria play in the nitrogen cycle.
Describe two roles bacteria play in the nitrogen cycle.
2
Explain why decomposers are essential to life on Earth.
Explain why decomposers are essential to life on Earth.
2
Explain the difference between a population and a community in an ecosystem.
Explain the difference between a population and a community in an ecosystem.
3
Briefly describe the steps in the water cycle.
Briefly describe the steps in the water cycle.