The atomic mass of an atom is the sum of the masses of the ________
a. electrons only
b. protons only
c. protons, neutrons, and electrons
d. protons and electrons
Answer: c
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The bones and cartilage in animals serve the same function as ________ in plants?
A. leaves B. phloem C. capillaries D. wood E. xylem
Which of the following describes the sequence of events that might occur in a long-day plant when a stem begins to produce flower parts?
A. CONSTANS (CO) protein, flowering gene (FT), messenger RNA, phloem transport to the meristem B. flowering gene (FT), CONSTANS (CO) protein, messenger RNA, phloem transport to the meristem C. messenger RNA, phloem transport to the meristem, CONSTANS (CO) protein, flowering gene (FT) D. messenger RNA, phloem transport to the meristem, CONSTANS (CO) protein, flowering gene (FT), phloem transport to the meristem E. phloem transport to the meristem, CONSTANS (CO) protein, flowering gene (FT), messenger RNA
Thrush in a newborn's oral cavity becomes less frequent as the infant ages. What is the most likely reason for this?
A. The acquisition of normal microbiota prevents the overgrowth of yeast. B. The infant begins to produce antifungal antibodies. C. Vaccines given in early infancy prevent the development of thrush. D. The eruption of the teeth inhibits the growth of yeast.
Using a six-sided die, what is the probability of rolling either a 5 or a 6?
A) 1/6 × 1/6 = 1/36 B) 1/6 + 1/6 = 1/3 C) 1/6 + 1/6 = 2/3