Which one of the following illustrates intraspecific competition?

A) Male red-winged blackbirds defending nesting sites from other males
B) A Franklin's gull swooping down to snatch a fish from the water's surface
C) A tick and a flea sharing a dog's back
D) A butterfly feeding on the nectar of a daffodil flower


A

Environmental & Atmospheric Sciences

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Wind farms are viable options for supplying more of our energy needs in the future because:

a. high speed wind is a form of medium-quality energy b. high speed wind is a form of high-quality energy c. high speed wind is a form of low-quality energy d. all speeds of wind are high quality energy e. wind is not an energy form at all

Environmental & Atmospheric Sciences

Which common feature can weaken sedimentary rocks?

A. Bedding B. Foliation C. Coarse interlocking crystals D. Fossils

Environmental & Atmospheric Sciences

During the 1950s, people lived on average more than two decades longer in developed countries than in developing ones. In the twenty-first century, the gap is ________

A) less than 5 years B) less than 10 years C) less than 15 years D) still the same E) increased to 30 years

Environmental & Atmospheric Sciences

A key that explains symbols used on a map is called a(n) ____________________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences