Earthworms show all of the following features except

A. containing distinct head regions and parapodia.
B. containing touch-sensitive and light-sensitive organs in the segments.
C. being hermaphroditic.
D. containing fewer setae than in polychaetes.
E. containing segments with a mouth on the first and the anus on the last.


Answer: A

Biology & Microbiology

You might also like to view...

In plants, sporophytes undergo meiosis to produce spores.

A. diploid B. fertilized C. triploid D. haploid E. tetraploid

Biology & Microbiology

After obtaining DNA fragments by PCR, the

fragments are

a. separated by a centrifuge. b. viewed under a microscope. c. separated by an electric current. d. inserted into a plasmid. e. chopped up using restriction enzymes

Biology & Microbiology

You have discovered a new cytoskeletal element and need to identify and characterize it for further work. How would you go about examining this protein to ultimately classify it as a cytoskeletal element?

What will be an ideal response?

Biology & Microbiology

A shark is a(n)

A) invertebrate chordate. B) amphibian. C) cartilaginous fish. D) jawless fish. E) bony fish.

Biology & Microbiology