Define the underlined terms in the following case study. Called upon to conduct a site assessment of an emu and rhea operation, a traveling veterinarian noted a number of broilers in the brood. Particularly in specimens of the latter, the veterinarian documented evidence of debeaking
What will be an ideal response?
1. emu-large, fast, flightless bird native to Australia that has been imported to zoos and used in animal agriculture; males are slightly smaller than females and have gray, black, and brown feathers
2. rhea-large, flightless bird native to South America that may be pale gray to brown and lack tail feathers
3. broilers-chickens approximately 8 weeks old weighing 1.5 kg or more
4. brood-young that are hatched or cared for at the same time
5. debeaking-removal of about one-half of the upper beak and a small portion of the lower beak in poultry to prevent feather picking, cannibalism, and fighting
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Fertilization normally occurs within which structure?
a) Ovary b) Fallopian tube c) Ovarian ligament d) Body of uterus e) Vagina
Which subspecialty of physiology deals with the study of functional changes associated with disease and aging?
a) exercise physiology b) renal physiology c) pathophysiology d) cardiovascular physiology e) immunology
Which structure is an important site for early blood cell formation and is the first of the extraembryonic membranes to form?
A. Amnion B. Yolk sac C. Chorion D. Zona pellucida
Which of the following statements concerning the plasma membrane is correct?
a. the plasma membrane appears as a trilaminar structure under a light microscope. b. the carbohydrates on the outer surface of the membrane serve as receptor sites for binding chemical messengers in the environment of the cell. c. the lipid bilayer serves as a barrier to passage of H2O-soluble substances through the membrane. d. carrier proteins shuttle back and forth across the membrane as they carry passenger molecules from one side to the other. e. the plasma membrane is impermeable to any substance that is not lipid soluble or is greater than 0.8 nm in diameter.