By the Late ____ period the Chordates had expanded to include a number of different taxa with skeletal elements such
as a rudimentary braincase.
a. Permian
b. Paleozoic
c. Cambrian
d. Jurassic
e. Cretaceous
c
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Choose the true statements about the human and mouse genomes.
_____ The human genome shares 99% of its genes with the mouse genome. _____ A comparison of genomes confirms that mice and humans shared a common ancestory more recently than humans and pufferfish. _____ Very few genes are conserved in the two genomes. _____ Little rearrangement of genes has occurred in the two genomes.
What information is used to calculate the age-specific fertility rate, mx?
A. net reproductive rate B. total number of offspring born to females of reproductive age C. per capita growth rate D. proportion of female offspring born to females of reproductive age E. age at first reproduction
The method of reasoning that uses construction of general principles by careful examination of many specific cases is called:
A. experimental reasoning. B. theoretical reasoning. C. inductive reasoning. D. hypothetical reasoning. E. deductive reasoning.
The MAIN components of a cell membrane are
A. phospholipids and proteins. B. steroids and carbohydrates. C. nucleic acids and simple sugars. D. proteins and steroids.