."A change over time" is the definition of
a. mutation.
b. homeostasis.
c. physiology.
d. evolution.
e. respiration.
D
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Place the following events of mitosis in the correct order.
I. Sister chromatids align on the metaphase plate. II. The cleavage furrow forms. III. The nuclear membrane breaks up. IV. Sister chromatids condense. V. Sister chromatids separate. A. I, II, III, IV, V B. III, IV, I, V, II C. IV, III, I, V, II D. III, II, I, IV, V E. IV, I, III, V, II
Four of the five answers listed below are
characteristics of xylem. Select the EXCEPTION.
a. dead at maturity b. cell walls are impregnated with lignin c. conducts dissolved sugars d. includes tracheids and vessels e. has pits in the walls of the cells
Which contraceptive approach is least effective?
a. abstinence b. tubal ligation c. vasectomy d. hormonal implant e. rhythm method
Which of the following that their cell wall, if present, may contain chitin?
A. Prions B. Viruses/viroids C. Eukaryotes D. Prokaryotes E. Both, eukaryotes and prokaryotes