Endotherms - Study guides, Class notes & Summaries

PNB 2250 Exam 3 Complete Questions And Answers With Latest Quiz Of the following, which is NOT a strategy by which endotherms generate internal heat: ANS Panting The minimal metabolic activity required to maintain bodily functions in a mammal is known as the ANS basal metabolic rate. Which of the following thermoregulatory mechanisms can be used to restrict blood flow to the skin, and thus decreases heat loss by keeping the warmed blood closer to the core of the body? ANS vasoconstrict...

MBE 307 Exam 2 Qestions And Answers 2024/2025 What is the difference between ectotherms/poikilotherms and endotherms? - ANS-Ecotherms' body temperatures are influenced by the ambient temperature (some poikilotherms can regulate temperature) whereas endotherms are warmed by metabolic heat (homeotherms regulate by physiological means). How do moths and bees exhibit heterothermy? - ANS-Moths and bees must warm their muscles first through shivering and muscle contractions in order to fly,...

Agonist - Competitive inhibition, binds to active site and causes a signal response in receptive tissue. Antagonist (blocker) - Competitive inhibitor, binds to active site so signal molecules cannot bind but causes no response in receptive tissue, can bind and release eventually. Apply your understanding of channels and synapses to predict how various neurotoxins affect nervous function. - Neurotoxins block receptor proteins on the post-synaptic neuron. Example: tetrodotoxin form Fugu fish...

maintenance of stable conditions in an internal environment and efforts to maintain a metabolic goal correct answers What is homeostasis? homeostasis correct answers What is considered a goal at one point at one condition? feedback correct answers What is the mechanism used by homeostasis? information that weakens the response of the effector correct answers What is negative feedback? amplifies a response by an effector; increases deviation from a set point correct answers What is po...

PNB 2250 Exam 3 Questions and Answers – Updated 2024 Of the following, which is NOT a strategy by which endotherms generate internal heat: - Ans:- Panting The minimal metabolic activity required to maintain bodily functions in a mammal is known as the - Ans:-basal metabolic rate. Which of the following thermoregulatory mechanisms can be used to restrict blood flow to the skin, and thus decreases heat loss by keeping the warmed blood closer to the core of the body? - Ans:- vasoconstrict...

OCR A-Level Biology Updated Questions And Verified Answers With Complete Solutions| Graded A| What is Cell signalling? Correct Answer When cells communicate by signalling, one cell releases a chemical•This chemical is detected by another cell•The second cell then responds to this signal What are the two Cell signalling systems Correct Answer There are 2 major systems of communication: Neuronal System• via Network of neurons• Quick signals• Rapid responses Hormonal System•...

PRAXIS 5236 Flashcards 100% All Verified 2024 A+ Vascular Plant - ANS-has true leaves, stems, roots that contain xylem and phloem Nonvascular Plants - ANS-lack true leaves, stems, and roots and do not have any true vascular tissue but instead rely on diffusion and osmosis to transport most matersals or recourses needed to survive endotherms - ANS-Animals (such as birds or mammals) that can regulate their body temperature regardless of the environments. ectotherms - ANS-An animals that ...

Biology Major Field Test Study Set with Complete Solutions (Already Graded A+) RFLP - Answer restriction fragment length polymorphisms; diff in length of fragments made by restriction enz digestion of 2 DNA samples ruminants - Answer variations in: enlarged multichambered stomachs; length of alimentary canal; shape of teeth trachae - Answer resp tubules that make up anthropod resp sys. open to outside through spiracles cloaca - Answer opening found at tail end of reptiles used fo...

1. What conditions existed in habitats near the hydrothermal vent in lost city. -extreme heat -extreme pressure -basic ph -anaerobic(relating to, involving, or requiring an absence of free oxygen.) 1. What did Miller and Urey conclude from their simulation experiment in the lab? -Miller and Urey demonstrated the formation of organic molecules from simulating a primitive Earth atmosphere containing water vapor, hydrogen, methane and ammonia? -Simple organic molecules, including amino acids (the ...

EOSC Unit 4 Exam Questions and Answers All Correct Why do Birds Migrate? - Answer- To exploit habitats inaccessible to others How Have Penguins Adapted to Their Environment? - Answer- -Wings are flippers -Streamlined body and beak -Dense bones -Counter shading -Eyes adapted for underwater vision -Fat & air trapped under feathers -Eat krill, fish, squid -Travel inland to mate in Antarctic water -Eggs don't hatch until summer -Males incubate with feet Characteristics of Mammals...