Species on oceanic islands often closely resemble species on the nearest mainland, suggesting that the island and
mainland species share a common ancestry.
a. True
b. False
ANSWER: True
You might also like to view...
Tissue transplanted from one body site on a patient to a different body site on that patient is called a(n) ________.
A. autograft B. isograft C. xenograft D. hypograft E. allograft
What evolutionary advantage do flowers provide to angiosperms?
a. They metabolize sunlight faster than in plants without flowers. b. They prevented predation by herbivores, as their bright colors served as a warning to keep away. c. They developed a cooperative evolutionary relationship with pollinators, which delivered pollen to female gametophytes more directly. d. They provided shade and protection from sunlight in hot climates.
When scientists were attempting to determine the structure of the genetic code, Crick and coworkers found that when three base additions or three base deletions occurred in a single gene, the wild-type phenotype was sometimes restored
These data supported the hypothesis that ________. A) the code is triplet B) AUG is the initiating triplet C) the code contains internal punctuation D) there are three amino acids per base E) the code is overlapping
Which of the following is a polysaccharide?
A) glucose, the chief cellular energy source B) cellulose, the primary component of plant cell walls C) fructose, one of the most important blood sugars D) insulin, the chief blood sugar regulator E) sucrose, one of the most important blood sugars