A land snail, a clam, and an octopus all have _____
A) a mantle
B) a radula
C) gills
D) embryonic torsion
E) distinct cephalization
Answer: A
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An antibody molecule consists of ____ polypeptide chain(s)
a. four light b. four heavy c. two light and two heavy d. three light and one heavy e. one light and three heavy
Which of the following are mostly vines, have broad leaves, and are found in subtropical zones?
a. Conifers b. Ginkophytes c. Cycads d. Gnetophytes
Which type of chromosome mutation increases the amount of genetic material for all chromosomes?
A. aneuploidy B. translocation C. inversion D. transversion E. polyploidy
Which is a form of diffusion where the molecules pass through a protein channel instead of between the phospholipids?
Cellular respiration Diffusion Facilitated diffusion Mitochondria