04:57Homeostatic Control Systems - Homeostatic Control Mechanisms and Feedback Control LoopsWhats Up Dude1078views
06:56Homeostasis - negative and positive feedback (thermoregulation and lactation)Armando Hasudungan1061views1rank
04:00Homeostasis - What Is Homeostasis - What Is Set Point For Homeostasis- Homeostasis In The Human BodyWhats Up Dude938views
06:12Energy Considerations in Nutrition: BMR, RMR & Physical Activity – Nutrition | LecturioLecturio Medical337views
06:29Basal Metabolic Rate (BMR) || Basal Metabolic Rate BiochemistryBiochemistry Basics by Dr Amit898views
04:21Metabolic Rate - What Is Metabolic Rate - Basal Metabolic Rate - How Many Calories Burned In A DayWhats Up Dude841views
Multiple ChoiceThe __________ system and the __________ system work together to coordinate and control physiological processes in most animals. 369views
Multiple ChoiceWhich of the following is a characteristic of the nervous system but not the endocrine system? 585views
Multiple ChoiceWhen a jogger starts to run, the rate at which his muscles produce CO2 rises sharply. But the CO2 in his blood rises only slightly before he starts to breathe faster and his heart starts beating stronger. Soon his increased rate of CO2 production is balanced by an increased rate of CO2 removal. This would be an example of __________ feedback because the jogger's circulatory and respiratory systems are __________. 534views
Multiple ChoiceWhich of the following animals would you expect to consume food at the highest rate (kilograms of food per kilogram of body weight per day)? 431views
Multiple ChoiceDuring the night, the dormouse forages and eats, but during the day, its body temperature and heart rate drop significantly. This is an example of what physiological process? 327views
Multiple ChoiceThe amount of energy expended while an endothermic organism is resting, unstressed, and not actively digesting or growing is called its __________. 336views
Multiple ChoiceIn most animals, food is digested by __________, __________ are absorbed by body cells, and most energy-containing molecules are used to generate __________. 394views
Textbook QuestionThe cells of an ant and an elephant are, on average, the same small size; an elephant just has more of them. What is the main advantage of small cell size? (Explain your reasoning.) a. A small cell has a larger plasma membrane surface area than does a large cell. b. Small cells can better take up sufficient nutrients and oxygen to service their cell volume. c. It takes less energy to make an organism out of small cells. d. Small cells require less oxygen than do large cells.738views
Textbook QuestionNegative-feedback mechanisms are a. most often involved in maintaining homeostasis. b. analogous to a furnace that produces heat. c. found only in birds and mammals. d. all of the above409views
Textbook QuestionDescribe ways in which the bodies of complex animals are structured for exchanging materials with the environment. Do all animals share such features?325views
Textbook Question______ refers to the protection of the internal environment against the harms of changes in the external environment. 425views
Textbook QuestionWhile driving your car over hilly terrain, you maintain a constant speed of 55 miles per hour. Write a short paragraph describing how this illustrates the concept of homeostasis.314views