AnswersKY-Integrated Science I CRUnit Test

Unit Test — Cumulative exam Answers

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Which of the following difference between DNA and RNA allows them to perform their unique functions?

A
DNA contains ribose, while RNA contains deoxyribose.
B
DNA is single-stranded, whereas RNA is double-stranded.
C
DNA contains thymine, while RNA contains uracil.
D
RNA is found only in the nucleus, while DNA is found only in the cytoplasm.
22
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Which statement accurately describes reproduction in animals?

A
All animals can reproduce asexually, and some can reproduce sexually.
B
All animals can reproduce sexually, and some can reproduce asexually.
C
Animals only reproduce sexually.
D
Animals only reproduce asexually.
23

Based on the food chain below, if a bald eagle acquires 50 kg of energy, how much energy did the zooplankton get from the phytoplankton? phytoplankton zooplankton bivalves sea ducks bald eagle

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A
500 kg
B
5,000 kg
C
50,000 kg
D
500,000 kg
24

The table lists some organelles and functions. Only one pair is correctly matched.Functions of OrganellesOrganelleFunctionLysosomeStores water and waste materialsVacuoleBreaks down sugarsMitochondrion Breaks down waste materials and debrisRibosomeProduces proteins for the cellWhich organelle in the table is correctly matched with its function?

A
lysosome
B
vacuole
C
mitochondrion
D
ribosome
25

Which describes a disruption in the water cycle that could affect photosynthesis?

A
Heat causes an excess of transpiration.
B
Heat causes an excess of evaporation.
C
Heat causes an excess of condensation.
D
Heat causes an excess of precipitation.

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