Earthworms differ from most of the marine annelids in that earthworms
a) develop from a larval form, while marine annelids do not.
b) lack paddle-like parapodia that marine annelids have.
c) have well-developed brains and sensory organs in the head region, while marine annelids do not.
d) have segments, while marine annelids do not.
e) lack setae that marine annelids have.
Ans: b) lack paddle-like parapodia that marine annelids have.
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The only process that can lead to adaptations and directed genetic change of a population is:
a. natural selection. b. mutation. c. migration. d. genetic drift. e. inbreeding.
Identify the bacterial shape pictured: O
A) coccus B) pleomorph C) spirochete D) bacillus
Asexual reproduction is rare in plants
Indicate whether the statement is true or false
By showing your colleague that the conclusions of your analysis regarding the optimal pricing strategy for the firm would be the same under a variety of different assumptions regarding the price response of competitors is an example of:
A. direct proof. B. selection bias. C. degree of support. D. robustness.