The scientist who first described cells was______________.
Fill in the blank(s) with the appropriate word(s).
Ans: Hooke
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Which hormones play a role in calcium metabolism?
The Centers for Disease Control and Prevention (CDC) recommendations for testing in suspected cases of Lyme disease are to screen with ______ and confirm with ________
a. RPR; FTA-ABS b. enzyme-linked immunosorbent assay (ELISA); immunofluorescent antibody (IFA) c. IFA; immunoblotting d. ELISA; TP-PA
Matching. Choose the one most appropriate answer
for each. 1. ___ nephron 2. ___ aldosterone 3. ___ tubular secretion 4. ___ ADH 5. ___ conduction 6. ___ convection 7. ___ pilomotor response 8. ___ ectothermic 9. ___ evaporation 10. ___ glomerular filtration 11. ___ hemodialysis 12. ___ hypothermia 13. ___ heterothermic 14. ___ radiation 15. ___ tubular reabsorption A. do not maintain the same body temperature at all times; are capable of internal heat production B. heat energy is released to the air when liquid water converts to gaseous form C. bulk flow of protein-free plasma from capillaries into Bowman’s capsule D. animals with more or less constant body temperature E. emission of heat from body surface when environmental temperature is lower than the body temperature F. movement of ions from peritubular capillaries into nephron tubules G. loss of too much body heat H. heat next to the body’s surface undergoes mass transport by air or water currents I. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries J. a long, slender, tubular unit in the vertebrate kidney that forms urine K. body temperatures rise and fall with environmental changes L. secreted by adrenal glands; influences sodium reabsorption M. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries N. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules O. released from the posterior lobe of the pituitary in response to hypothalamic signals P. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath Q. erection of hairs and feathers by smooth muscles in the skin
Cigarette smoking can sometimes lead to development of a "smoker's cough," which results from paralysis of cilia in the airways. Why would the paralysis of cilia lead to smoker's cough?
A) Paralyzed cilia can no longer clear the airways of mucus, so coughing helps remove it. B) Paralyzed cilia can no longer provide an immune response to protect the airways from harmful compounds in the smoke, so coughing is used to try to prevent the compounds from damaging the airways. C) Paralyzed cilia lead to a nervous response that "tickles" the airways and induces coughing. D) Paralyzed cilia push mucus downward into the alveoli, which coughing attempts to remove.