Prokaryotes lack which of the following?
A. DNA
B. a cell membrane
C. a cell wall
D. RNA
E. a nucleus
E. a nucleus
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In the early plant embryo, cells divide asymmetrically. Which structure does not result from divisions of the apical (terminal) cell?
A) the suspensor B) the cotyledons C) the hypocotyls D) the shoot
When two genes are located on different chromosomes, ____ of the offspring from a testcross for
genetic linkage should have a recombinant phenotype.
a. over 75% b. about 50% c. about 25% d. about 10% e. about 5%
The life cycle of the human liver fluke has intermediate hosts
a. one. b. two. c. three. d. four.
What is the overarching term to describe the regulation of the internal environment in animals? Describe two processes or structures described in this unit that allow mammals to regulate body temperature. For each process or structure, describe how it works to regulate temperature
What will be an ideal response?