A close evolutionary relationship between annelids and mollusks is suggested by the presence of a _____ larva in both phyla as well as by molecular sequence comparisons

A. trochophore
B. lophophore
C. radula
D. bivalve
E. none of these


A

Biology & Microbiology

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Members of the ____ Lophotrochozoan phylum include earthworms, bristle worms, and leeches

a. Rotifera b. Mollusca c. Platyhelminthes d. Annelida e. Nemertea

Biology & Microbiology

Which of the following are considered fossils?

A. Mineralized bones B. Animals frozen in ice or preserved in amber C. Footprints or other impressions preserved in stone D. All of the above are considered fossils

Biology & Microbiology

The combination of DNA and its associated proteins is a(n) ____

a. gene b. nucleolus c. centriole d. chromosome e. allele

Biology & Microbiology

Which type of mutation can cause a change in the coding sequence?

a. silent mutation b. insertion c. deletion d. nonsense mutation e. All of the above

Biology & Microbiology