Which biome has the greatest number of distinct layers of vegetation?
a. savanna
b. tropical rain forest
c. desert
d. chaparral
e. grassland
B
You might also like to view...
The advent of recombinant DNA technology made the sequencing of genomes possible
a. True b. False Indicate whether the statement is true or false
Countries whose economies are dominated by primary-sector activities tend to have a relatively low per capita GDP. The exceptions are
A) some oil-rich countries (Saudi Arabia, Qatar, Venezuela). B) tourism-based countries (Jamaica, Kenya, Thailand). C) manufacturing-based countries (Germany, Italy, Japan). D) service-based countries (United States, Canada, Austria). E) primary commodity-producing countries (Mexico, China, Turkey).
Without elephants, African grasslands convert to forests or to shrublands. Which of the following phrases are true statements about the elephant? Check all that apply.
A. Grazing antelope depend on the presence of the elephant. B. Elephants graze on young shrubs and trees. C. The elephant is a keystone species. D. Elephants are the most abundant species on the grassland. E. If elephants went extinct, other species in the area would be unaffected.
All of the following can make interpreting the Gram stain difficult except
A) testing bacteria that have a waxy cell wall. B) the culture is between 24 and 48 hours old. C) testing bacteria that are forming endospores. D) the culture is more than 48 hours old and contains damaged cells. E) testing bacteria with especially resistant cell walls.