Ch 3 Ecosystem dynamics

The air people breathe resides in the lowermost layer of the atmosphere called the ____.

• biosphere

• ozone layer

• geosphere

• troposphere

• stratosphere

The transport of woodrat droppings to other areas could be described as ____.

• remote sensing

• chemical analysis

• a controlled experiment

• behavioral science

• laboratory research

The oceans contain about ____ of Earth’s water.

• 85%

• 71%

• 55%

• 38%

• 97%

Tags

NGSS.MS-ESS2-4

Photosynthesis is performed by (a)   .

• herbivores
• detritivores
• autotrophs
• heterotrophs
• decomposers

Tags

NGSS.MS-LS1-6

Which of the following best represents the process of aerobic respiration?

• glucose + carbon dioxide → oxygen + water + energy

• glucose + oxygen → carbon dioxide + water + energy

• energy + oxygen → carbon dioxide + water + glucose

• water + glucose → oxygen + carbon dioxide + energy

• energy + glucose + oxygen → carbon dioxide + water

Tags

NGSS.MS-LS2-3

Earth’s life-support system consists of four main spherical systems—the air, water, living things, and the ____.

• troposphere

• biosphere

• geosphere

• hydrosphere

• atmosphere

Tags

NGSS.MS-ESS2-4

Bacteria and fungi are typically categorized as ____.

• autotrophs

• producers

• primary consumers

• tertiary consumers

• decomposers

Match the following processes with how carbon is cycled through the biosphere.

• Conversion of carbon dioxide into glucose and release of carbon dioxide by organisms

• volcanic activity and organic decay

• Microbial activity in soil and water cycle processes

• fuel combustion and decomposition

• Eruptions releasing carbon and breakdown of organic material

• photosynthesis and aerobic respiration

• Burning of fossil fuels and breakdown of organic matter

• soil bacteria and precipitation

• Geological processes involving carbon-containing rocks

• the rock cycle

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Nitrogen fixation is accomplished by ___.

• legumes

• bacteria

• algae

• protozoa

• roundworms

Tags

NGSS.MS-LS2-3

The level of productivity in oceans can be explained by the fact that ____.

• growth in oceans is not limited by nutrient availability

• oceans are home to whales, which are large animals

• the volume of the global ocean is enormous

• more sunlight is available to organisms in oceans

• there are fewer primary consumers in oceans

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3