Analogous structures are evidence of ________
A) common ancestry
B) divergent evolution
C) stabilizing selection
D) convergent evolution
D
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How does the production efficiency of ectotherms and endotherms compare?
A. Usually higher in ecotherms than in endotherms. B. Usually lower in ecotherms than in endotherms. C. Approximately equal in ectotherms and endotherms. D. Usually negative in ectothems and positive in endotherms. E. Usually positive in ectothems and negative in endotherms.
You find a unicellular organism that forms lobe-like pseudopodia. When you expose the cells to
cAMP, they aggregate into a slug like structure. Based on this information, you correctly conclude that this organism is: a. Entamoeba histolytica. b. Dictyostelium discoideum. c. Chaos carolinense. d. Chlamydomonas. e. Physarum polycephalum
What is the BEST way for a scientist to address his/her own biases?
a) make sure that no biases influence his/her work b) use careful controls to minimize them c) understand his/her biases and interpret the data differently as a result d) never be involved in any kind of scientific study where his/her possible biases might impact the study e) none of the above is correct; there is no way a scientist can deal with biases
Which is false concerning mitosis and meiosis?
A. At the end of meiosis 1, there are 2 cells with half the genetic material as the parent cell. B. The end product of meiosis is 4 daughter cells. C. The end product of meiosis is 2 identical daughter cells. D. The end product of mitosis is 2 identical daughter cells.