Four of the following are major features of arthropods. Which is the exception?

a. jointed appendages
b. exoskeleton
c. paired segmental nephridia
d. specialized segments that are fused together
e. specialized sensory structures


ANSWER: c

Biology & Microbiology

You might also like to view...

If we were to discover beings on a distant planet that looked very much like us, it would probably be

cited as an example of

a. coincidence. b. convergent evolution. c. homology. d. adaptive radiation. e. genetic drift.

Biology & Microbiology

To which of the following groups does the organism

in the above figure belong? a. diplomonads, parabasalids, trypanosomes, and euglenoids b. ciliates, dinoflagellates, and apicomplexans c. water molds, diatoms, and brown algae d. chlorophyte and charophyte algae e. amoebas and slime molds

Biology & Microbiology

A human fecal sample is examined and found to contain a few strobila. The person is probably infected with

A) Echinococcus granulosus. B) Giardia intestinalis. C) Taenia. D) Schistosoma. E) Necator americanus.

Biology & Microbiology

Which transcription factors are normally bound to the Psf promoter in the presence of both Mg2+ and Ca2+?

(a) MetA and MetB (b) MetB and MetC (c) MetA and MetC (d) MetA, MetB, and MetC

Biology & Microbiology