Which accessory organ's secretions neutralize stomach acid before it reaches the intestines?
A) Salivary glands
B) Gallbladder
C) Liver
D) Pancreas
D
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Answer the following statements true (T) or false (F)
1. All tissues are composed of cells. 2. The capacity to maintain a fairly constant body temperature is a homeostatic process. 3. A community is composed of different populations of animals and plants. 4. A defining characteristic that distinguishes prokaryotic and eukaryotic organisms is the lack of a cell membrane in prokaryotes.
56. In this diagram, the Y-axis of the graph shows values of "Incidence of Illness" in infants. The varying numbers of infants getting sick with rotavirus represents the
This figure shows graphed medical research results from a study on a new vaccine. The research was done in an effort to determine if a new vaccine would be effective in preventing potentially dangerous rotavirus infections in infants. Green data bars represent occurrence of infant cases that had normal rotavirus strains that aren't critically dangerous. Blue data bars represent occurrence of infant cases that had more dangerous rotavirus strains that can hospitalize or lead
A. normal infant baseline for reference to results from this medical study.
B. control group of infants in this medical study.
C. dependent variable of this medical study.
D. independent variable of this medical study.
E. standardized variable of this medical study.
Genes located in cells in different regions of the
body during embryonic development may a. be turned on and off. b. never be turned on. c. be turned on and left on. d. be activated for only a short time in one cell and a long time in another cell. e. do all of these.
Studies by Avery, MacLeod, and McCarty with different strains of bacteria and those by Hershey and Chase with T2 bacteriophage determined that proteins are highly complex molecules that form the genetic material for bacteria and viruses.
Answer the following statement true (T) or false (F)