Biology Midterm 3 Review

A biologist collected data regarding energy flow in a local ecosystem. What would an energy pyramid for the trophic levels in this ecosystem look like?

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Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

If the producers in an ecosystem start off with 1000 kJ of energy available to them, approximately how much energy will be available to the secondary consumers?

• 10,000 kJ

• 100 kJ

• 10 kJ

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Examine the food web to answer the question. Which food chain represents the trophic levels found in this food web?

• grass --> rabbit --> shrub --> deer

• shrub --> grasshopper --> shrew --> hawk

• mountain lion --> snake --> rabbit --> shrub

Tags

NGSS.MS-LS2-3

Study the food web. Which organisms are omnivores in the woodland ecosystem?

• sparrow and skunk

• sparrow and shrew

• shrew and rabbit

In most energy pyramids, what is the original source of energy for all the organisms?

• carbon

• oxygen

• sunlight

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which statement about the cycling of materials through a stable ecosystem is true?

• Certain species of bacteria are responsible for cycling nitrogen from the atmosphere to plants.

• Water and energy are the only materials in an ecosystem that cannot be recycled.

• Carbon dioxide is continuously cycled through a stable ecosystem, but only bacteria can convert it to a usable form.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Use the diagram to answer the question. What do the labeled numbers in the diagram represent?

• 1: cellular respiration; 2: photosynthesis

• 1: photosynthesis; 2: cellular respiration

• 1: transpiration; 2: cellular respiration

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The diagram shows a simple food web.

If the decomposers were removed from the food web, which process for maintaining balance in an ecosystem would be altered first?

• maintenance of atmospheric quality

• recycling of nutrients

• maintenance of the hydrologic cycle

Tags

NGSS.MS-LS2-3

The diagram shows the water cycle.

When are impurities such as dust and particulates removed from the atmosphere?

• during Condensation and Precipitation

• during Evaporation and Transpiration

• during Runoff and Precipitation

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

A student is constructing a model to illustrate the levels of organization for life on Earth. Which description would be the best to add to the model for level 3?

• part of the planet that supports life

• all of the different species living in the same geographic area

• members of the same species living in the same geographic area