Science 5th Grade Review

Which type of animal usually eats both producers and consumers?

• an omnivore

• a carnivore

• a herbivore

• a predator

Which is a characteristic of most single-celled organisms?

• They have a complex nervous system.

• They contain several different types of cells.

• They perform all life processes.

• They have a circulatory and a respiratory system.

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Which statement best describes how a multicellular organism survives?

• Every cell carries out the same functions for the survival of the organism.

• The cells all have the same structures that allow the organism to survive.

• All life processes are performed by each cell for the survival of the organism.

• The cells have different functions, and together they are essential for the survival of the organism.

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What is the relationship between the respiratory system and the circulatory system?

• The respiratory system exchanges oxygen and carbon dioxide with the

  circulatory system.

• The respiratory system exchanges oxygen and carbon monoxide with

  the circulatory system.

• The respiratory system exchanges oxygen and sugar with the circulatory

  system.

• The respiratory system exchanges oxygen and nitrogen with the circulatory

  system.

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In what way are the digestive and circulatory systems alike?

• Both protect organs in the body.

• Both control movement of the body.

• Both absorb gases or nutrients into the body.

• Both provide structural support for the body.

Which has the greatest effect on the amount of salt in a salt marsh?

• the number of animals living in the marsh

• the closeness of the marsh to the ocean

• the depth of the water in the marsh

• the temperature of the water in the marsh

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Which classification best describes herbivores?

• producers

• consumers

• predators

• decomposers

What will be most affected if the decomposers in an ecosystem are removed?

• the spread of disease

• the availability of water

• the quality of soil

• the distribution of organisms

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A mother rabbit has a litter. One of the babies is born with one long ear and one

short ear. What most likely caused this one rabbit to be born with one short ear?

• The mother rabbit had previously lost an ear in an accident.

• The mother rabbit became sick before she gave birth.

• A mutation occurred during the development of this one rabbit.

• This one rabbit received less nutrition than the other rabbits before it was

  born

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Which is an example of a trait that is inherited?

• dimples

• intelligence

• weight

• favorite color

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