Which statement best summarizes the connection between islands and species richness?
a. The factor influencing species richness on an island is distance from the mainland.
b. The factor influencing species richness on an island is island size.
c. The factor influencing species richness on an island is the type of species on the island.
d. The factors influencing species richness on an island are distance from the mainland and
island size.
e. The factors influencing species richness on an island are distance from the mainland and
type of species on the island.
D
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Morphological traits are commonly used to identify species, which of the following can also be used?
A. The ability to interbreed. B. Molecular similarity (DNA and chromosome comparisons). C. Ecological factors. D. Evolutionary relationships. E. All of these.
__________ is a field of study concerned with the origins, evolution, and persistence of life on Earth
as it relates to life in the universe. Fill in the blank(s) with the appropriate word(s).
El Niño-Southern Oscillation has resulted in:
a. global weather changes. b. increases in the fish populations off South America. c. cooling of surface waters of the East Pacific. d. upwelling in many places. e. global warming.
Which of the following bonds explains the cohesion of water molecules in the cohesion-tension mechanism?
A) Disulfide B) Peptide C) Hydrogen D) Ionic E) Covalent