The prevalence of a disease can be calculated as the (total number of cases in population) divided by the (total number of people in population) time (____)
Fill in the blank(s) with the appropriate word(s).
100
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According to Chargaff's rule, if the DNA of a species contains 20% adenine, what percent of guanine will it contain?
A. 20% B. 30% C. 50% D. 75%
The plant hormone ____ is generally responsible for long-term inhibition of plant growth such as in buds and seeds
a. auxin b. gibberellin c. oligosaccharin d. brassinosteroid e. abscisic acid
Matching I. Choose the one most appropriate answer
for each. 1. ___ abortion 2. ___ abstinence 3. ___ coitus 4. ___ douching 5. ___ ejaculation 6. ___ implantation 7. ___ lactation 8. ___ menopause 9. ___ menstruation 10. ___ miscarriage 11. ___ orgasm 12. ___ ovulation 13. ___ tubal ligation 14. ___ vasectomy A. the production and secretion of milk B. sloughing off of endometrium stops permanently C. induced dislodging and removal of an embryo or fetus from the uterus D. an abortion that occurs spontaneously E. the burrowing of the blastocyst into the uterine lining F. the release of an egg from the ovary G. the release of seminal fluid from the male reproductive tract H. a 100-percent-effective method of preventing conception I. a highly unreliable form of birth control J. the periodic elimination of the uterine lining K. characterized by involuntary muscle contractions, release of tension, and warmth L. sexual intercourse M. sperm and egg cannot meet because a section of oviduct is missing N. cutting and tying of vasa deferentia
The function of chloroplasts is
A) cellular respiration. B) lipid synthesis. C) photosynthesis. D) intracellular digestion.