Bio 100 Cogbooks Exam 3 Questions and Answers Already Passed

Bio 100 Cogbooks Exam 3 Questions and Answers Already Passed **What function does homeostasis serve in an organism?** maintaining a stable internal environment **How do lizards regulate their body temperature if they don't generate internal heat?** They bask in the sun to warm up, demonstrating ectothermy. **What response does an endothermic animal have to a sudden drop in environmental temperature?** They constrict blood vessels to retain heat within the core of the body. **Which of the following is an example of positive feedback?** a. After eating a meal with high glucose levels, the pancreas secretes insulin, which lowers blood glucose levels. b. After a cut, injured tissue releases chemicals that activate platelets. These activated platelets release chemicals to activate more platelets, leading to blood clot formation. c. An increase in blood pressure causes heart rate to decrease, which then lowers blood pressure. d. The secretion of TSH stimulates the thyroid gland to secrete thyroxine, which in turn inhibits TSH secretion. B **What mechanism is most likely responsible for lowering your blood sugar after it rises above normal?** a. The use of sugar for energy by your cells. b. A homeostatic mechanism based on negative feedback. c. Type II diabetes. d. A homeostatic mechanism based on positive feedback. B **Which of the following is not a type of tissue?** a. Muscle. b. Nervous. c. Embryonic. d. Epithelial. C **What type of tissue is adipose tissue?** a. Muscle. b. Connective. c. Epithelial. d. Nervous. B **Which type of tissue is characterized by its ability to send and receive electrochemical signals?** a. Muscle. b. Epithelial. c. Connective. d. Nervous. D **In which type of muscle would you find