What type of vegetation is dominant in savannas?
A) needleleaf
B) broadleaf deciduous
C) grass and shrub
D) It is devoid of vegetation.
Answer: C
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The speed of an airplane caught in a right-angle crosswind
A. remains unchanged. B. decreases. C. increases. D. cannot be estimated.
Which of the following is NOT included in the concept of biodiversity?
A. diversity of climate B. diversity of ecosystems C. diversity of genes D. diversity of species
____ caused a major tsunami wave in Alaskan coastal fjords
a. ?A stratovolcano eruption b. ?An undersea landslide caused by liquefaction of beach sediment c. ?A massive rockfall at one end of the fjord d. ?Calving of the ice at the end of a glacier e. ?A submarine landslide within the fjords
The combination of role and habitat for a particular species is referred to as its ____
a. environment b. ecological niche c. territorial prerogative d. hunting grounds