QUESTION 1

1.         Which represents an early stage in primary succession?

           a.          pine tree growth

            b.         fields of food crops

            c.          mosses and lichen on bare rock

           d.          weedy annual plants in an open field

           e.          climax species in succession

4 points 

QUESTION 2

1.         The first plant to colonize the plains of Mount Saint Helens after this volcano erupted in 1980 was a prairie lupine. The prairie lupine is therefore an example of ____.

           a.          a secondary successor

           b.          an exotic species

            c.         an introduced species

           d.          a pioneer species

           e.          a keystone species

4 points 

QUESTION 3

1.         Where is most of the Earth’s phosphate found?

           a.         plants

           b.          ocean water

           c.          aquifers

           d.          rocks and sediments

           e.          the atmosphere

4 points 

QUESTION 4

1.          A community refers to ____.

           a.          the interaction between populations and their environment

           b.          the interaction between species and their environment 

           c.         an area in which a single species lives

           d.          the nonliving components of an area

           e.          all species that live and interact in a specific area

4 points 

QUESTION 5

1.         In the simplified prairie food chain illustrated in the pictures below, the letter D represents ____.

           a.          first trophic level

           b.          third trophic level

           c.          primary consumers

           d.          secondary consumers

           e.          tertiary consumer

4 points 

QUESTION 6

1.         What characterizes a biome?

           a.          its humidity and temperature

           b.          its climate and temperature

           c.         its plant life and mountain ranges

           d.          its temperature and main type of vegetation

           e.          its climate and main type of vegetation

4 points 

QUESTION 7

1.          Which biome is pictured here?

           a.          temperate grassland

           b.         boreal forest

           c.          chaparral

           d.          temperate deciduous forest

           e.          tropical rainforest

4 points 

QUESTION 8

1.         What is the main function of the ozone layer?

           a.         to trap carbon dioxide and warm the planet

           b.          to filter toxins from acid rain

           c.          to block most of the sun's damaging rays from reaching Earth

           d.          to provide a source of oxygen for photosynthesis

           e.          to provide cloud cover for protection of polar regions

4 points 

QUESTION 9

1.         The photos of the Muir Glacier taken in 1941 (left) and 2004 (right) demonstrate the consequences of____.

           a.         global climate change

           b.          acid rain

           c.          deforestation

           d.          biological magnification

           e.          ozone destruction

4 points 

QUESTION 10

1.         The primary producers associated with hydrothermal vents are ____.

           a.          diatoms

           b.          archaea

           c.          red algae

           d.          dinoflagellates

           e.         sea kelp