Which of the following is the sister group to
human?
a. earthworm
b. lizard
c. tuna
d. mouse
e. none of these
D
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The parietal lobe is indicated by
a. A. b. B. c. C. d. D. e. E.
A cell is dividing by binary fission. What can you conclude?
a. Mitosis has taken place without cytokinesis. b. Homologous chromosomes have already paired. c. The cyclin-Cdk complex is no longer phosphorylating enzymes. d. The cell cycle is out of control. e. The cell is prokaryotic.
______________ is a thick fluid inside the chloroplast membrane. Suspended within it are disk-like membranous sacs known as _______________, which are concentrated in stacks called _______________.
a) The stroma, grana, phloem b) The stroma, grana, xylem c) The stroma, thylakoids, xylem d) The stroma, thylakoids, grana e) The stroma, thylakoids, phloem
An ________ may arise when three sperm cells are involved in fertilization of a single egg
A) aneuploidy B) allotetraploid C) allotriploid D) autotetraploid E) autotriploid