Sponges have ____ symmetry
A. no
B. radial
C. bilateral
D. circular
A
You might also like to view...
Buttermilk and yogurt are produced by bacteria
that form a. ethyl alcohol. b. acetaldehyde. c. pyruvate. d. lactate.
e. citrate.Complementary base pairing links
a. nitrogenous bases b. amino acids c. proteins d. phosphate group
Most marine invertebrates are osmoconformers. This means that
A. that their body fluids contain the exact same solutes in the same concentration as their cells. B. that their body fluids contain the exact same solutes in the same concentration as their surroundings. C. the osmolarity of their body fluids is the same as their seawater environment. D. the osmolarity of their body fluids fluctuates between hypertonic to hypotonic depending on the season and the tides. E. the osmolarity of their body fluids is equal to that of the osmoregulators who inhabit the same environments.
Which of the following is NOT a characteristic of both DNA and RNA polymerases?
A) directionality of synthesis B) energy is provided by pyrophosphate C) hydrogen bonding of complementary nucleotides D) requirement for an initiation signal E) requirement for a primer