An emu is a flightless bird that still has wings. These wings are an example of
A) mutation.
B) adaptation.
C) analogous structures.
D) homologous structures.
E) vestigial structures.
E
You might also like to view...
The full extent of the diversity and abundance of life on earth has only been understood in the past few years as a result of
A. advances in deep oceanography and deep earth mining engineering. B. microscopy techniques to identify the vast quantity of viruses present in all environments. C. techniques to identify organisms that do not rely on culturing. D. environmental movements to preserve parks, coral reefs, and glaciers.
_____ the number of chromosomes is produced in the process of meiosis in a haploid-dominant organism.
a. One half b. One quarter c. Two thirds d. Three quarters
Homeotic genes
a. code for homeodomains. b. code for regulatory proteins. c. are a class of master genes. d. affect transcription. e. are all of these.
If chromosomal DNA from a host is the only type of DNA carried by a transducing particle, what can be concluded regarding transduction in this case?
A. Transduction in this case is neither generalized nor specialized. B. Transduction in this case could be generalized or specialized depending on the phage involved. C. Transduction in this case is generalized rather than specialized. D. Transduction in this case is specialized rather than generalized.