Flamingo beaks are upside down compared to other birds, forcing them to feed by putting their heads upside down in the water. The beak of a flamingo provides an example of what?
A. an imperfectly designed structure
B. a homologous structure
C. a vestigial structure
D. a structure that follows a common embryonic developmental pattern
E. a convergent structure
Answer: A
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Which of the statements below does not accurately describe the inheritance of mitochondrial and chloroplast genomes?
A. These organelles are partitioned with the cytoplasm during gamete formation. B. Organelles that derive from those in the mother exhibit maternal inheritance. C. Organelles that are in high concentration in sperm, such as mitochondria, are almost always inherited using a paternal inheritance pattern. D. Organelles in the offspring that derive from the father exhibit paternal inheritance. E. Organelles in the offspring that derive from both parents exhibit biparental inheritance.
Speciation caused by a change in the course of a
river is an example of __________ speciation. a. divergent b. parapatric c. allopatric d. convergent e. sympatric
Lice and their relationship with mammals is an example of what type of relationship?
A. commensalism B. parasitism C. mutualism D. predator-prey relationship
Assembly of new nucleosomes is carried out by complexes abbreviated ________
A) SSB B) TLS C) DSB D) CAF E) TERC