Adam Jones and colleagues (2000 ) studied the mating behaviors of broad-nosed pipefish (Syngnathus typhle) in a laboratory situation. For which sex is sexual selection a more potent evolutionary force?
A) females
B) males
C) Both sexes are under equal sexual selection pressure.
D) Neither sex is under sexual selection pressure.
A
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An experiment was done to determine the decimal reduction time of a specific population of organisms at 80oC. The data is indicated by an arrow on the graph. Which labeled line represents the likely results if the experiment was repeated using a lower temperature?
A. Line C B. Line A C. Line B D. Line D
________ was the first "test tube baby."
A) Louise Joy Brown B) Adam Nash C) J. Craig Venter D) Lauren Woodward
A typical amniote has ____, but fish do not
a. a backbone b. waterproof skin c. gills d. external fertilization e. a cartilaginous skeleton
What are the two short poison injecting fanged appendages on the anterior of the spider which are used for eating?
a) chelicera b) jaws c) chelapeds d) maxillae e) mandibles