Course

Introductory Biology

Study Pack

Set 52 An Introduction To Ecology And The Biosphere

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Question 1

(Multiple Choice)

Free
Palm trees and subtropical plants are commonplace in Land's End, England, whose latitude is the equivalent of Labrador in coastal Canada where the local flora is subarctic. Which statement best explains why this apparent anomaly exists between North America and Europe?

A) Labrador does not get enough rainfall to support the subtropical flora found in Land's End.
B) Warm ocean currents interact with England, whereas cold ocean currents interact with Labrador.
C) Rainfall fluctuates greatly in England; rainfall is consistently high in Labrador.
D) Labrador is too windy to support tall plants, such as palm trees.
E) Labrador receives sunlight of lower duration and intensity than does Land's End.

Answer

Question 2

(Multiple Choice)

Free
Which of the following abiotic factors has the greatest influence on the metabolic rates of plants and animals?

A) water
B) wind
C) temperature
D) rocks and soil
E) disturbances

Answer

Question 3

(Multiple Choice)

Free
Deserts typically occur in a band at 20 degrees north and south latitude because

A) descending air masses tend to be cool and dry.
B) trade winds have a little moisture.
C) moisture-laden air is heavier than dry air and is not carried to these latitudes.
D) ascending air tends to be moist.
E) these locations get the most intense solar radiation of any location on Earth.

Answer