Biology Midyear Review

Which statement provides the best explanation for the difference in biomass of organisms found at each trophic level?

• Organisms at higher trophic level have less energy available to them than organism at lower trophic levels.

• Organisms at higher trophic levels require smaller habitats that organisms at lower trophic levels.

• Organisms at lower trophic levels provide less energy than organisms at higher trophic levels.

• Organisms at lower trophic levels outcompete organisms at higher trophic levels.

Tags

NGSS.MS-LS2-3

A remora is a fish that has an adhesive disk on the back of its head that it uses to attach to a large shark. When food floats away from the shark's mouth as it feeds. Drawings of a shark with a remora attached and a remora's adhesive disk are shown. The relationship of the remora and the shark is........

• Predation

• Parasitism

• Commensalism

• Competition

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Tags

NGSS.MS-LS2-3

Which statement is an example of how carbon moves through a food chain as part of the carbon cycle?

•  Producers release carbon dioxide, and consumers take it in. 

• Producers take in carbon dioxide, and consumers release it.

• Producers take in carbon from the soil, and they release it when they decompose.

• Producers release carbon into the soil, and consumers take it in from the soil.

Tags

NGSS.MS-LS2-3

Students construct a graphic organizer to illustrate the different levels of biological organization.

Which terms does the X represent?

• cell

• organism

• ecosystem

• biosphere

Tags

NGSS.MS-LS1-1

The San Marcos salamander, Eurycea nana, is a light reddish-brown translucent salamander about 2–5 cm in length. E. nana is found only in Spring Lake and a portion of the San Marcos River.

Which human activity would most likely decrease the ability of the salamanders to survive?

• Increasing water consumption that decreases the flow of clean water from the springs that

  feed the river

• Public transportation that reduces the number of automobiles that contribute to pollution

  runoff into the river

• Tourism that helps fund the educational programs related to river ecosystem conservation

• The addition of a new food source into the river that limits competition for resources

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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NGSS.MS-LS2-2

After a wheat field is cleared, wild grasses and weeds begin growing. This process is considered —

• primary succession because pioneer species appear 

• primary succession because there are no large trees

• secondary succession because soil is already present

• secondary succession because the field contains inorganic matter

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Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

• Biosphere

• Organelle

• Ecosystem

• Community