Ecology Unit 1 Review

An example of a population is:

• all the Sialia sialis (eastern bluebird) in Missouri

• all the invertebrates in the intertidal zone on a beach

• the number of different species of mammals in a geographic area

• the number of sparrows, cowbirds, and oak trees in a state park

According to the following graph, what is the approximate population of deer at the carrying capacity of the environment?

• 10

• 30

• 50

• 70

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Of the following lists of factors relating to an ecosystem, which list contains only abiotic factors?

• Sunlight, green plants, consumers, oxygen

• Sunlight, climate, rainfall, minerals, gases

• Sunlight, green plants, rainfall, carbon dioxide

• Sunlight, rainfall, consumers, producers, water

Which statement concerning an ecosystem is correct?

• It can be defined by its components, interactions, and boundaries.

• It is an ecological area between 1,000 m2 and 10,000 m2 in size.

• It can exist on land, but it cannot exist in lakes, rivers, or oceans.

• It is isolated from all other ecosystems by its boundaries.

A forest fire burned all the leaves around a creek but left the trees standing. This increased the amount of sunlight reaching the creek but did not change any other conditions in the creek. As a result of the fire, which of these organisms will most likely increase in the creek first?

• Pike

• Water beetles

• Frogs

• Aquatic plants

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

A disease that infects only pike spreads throughout the pike population, causing it to decrease in size. As a result, which of the following will most likely occur?

• The turtle population will decrease.

• The perch population will increase.

• The water beetle population will increase.

• The heron population will decrease.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which term describes the role of aquatic plants in the food web?

• Decomposer

• Producer

• Parasite

• Consumer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which substance is not cycled by the processes of photosynthesis and cellular respiration?

• Carbon

• Hydrogen

• Nitrogen

• Oxygen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

During photosynthesis, producers convert carbon dioxide and other materials to:

• Lipids (fats and oils)

• Nucleic Acids (DNA)

• Amino acids (proteins)

• Sugars (glucose)

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The amount of what gas is increased if there is an increase in the rate of photosynthesis?

• Hydrogen

• Oxygen

• Carbon dioxide

• Carbon Monoxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3