- Study guides, Class notes & Summaries

PNB 2250 Exam 3 Uconn Questions and Answers The loss of digestive wastes, CO2 and NH4+ are examples of _______________. - Ans:-excretion The regulation of H2O and solutes is via ___________________. - Ans:-osmoregulation Water moves from an area of ________ (low, high) osmolarity to an area of __________ (low, high) osmolarity - Ans:-low, high ___________: a chemical dissolved in a solvent (H2O is the only solvent we are interested in) [6.02]. ___________s occupy space within H2O - Ans:-s...

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7 pages

Written in 2024/2025

Grade A+

GraceAmelia

©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/43 Name one aquatic and one terrestrial animal that has the opposite physiological setup: one that lacks a circulatory system (at least one used primarily for gas exchange) and respires using bulk flow of the medium (water or air) - Ans:-Bulk flow animals have no circulatory system Aquatic: sponge, cnidarian Terrestrial: insect (tracheal system and spiracles) Name an aquatic and terrestrial anima...

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43 pages

Written in 2024/2025

Grade A+

GraceAmelia

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...

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25 pages

Written in 2024/2025

Grade A+

GraceAmelia

PNB 2250 Exam 3 Practice Questions and Answers A fish freshwater....(E3) A. rapidly loses water through the gills B. loses solutes through the gills C. must be an osmoconformer D. actively pumps solutes out of its body through the gills E. must produce a very concentrated urine - Ans:-D The presence of poly-unsaturated fatty acids in the cell membrane is decreased in larger animals with lower mass-specific metabolic rates(E3) A. true ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS R...

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23 pages

Written in 2024/2025

Grade A+

GraceAmelia

PNB 2250 EXAM 3 PRACTICE QUESTIONS AND ANSWERS The presence of poly-unsaturated fatty acids in the cell membrane is decreased in larger animals with lower mass-specific metabolic rates(E3) A. true B. false C. this is dependent on animal shape D. This is only true for swimming animals E. this is only true for flying animals - Ans:-A. true A size selective (but not solute selective) nephron filtration barrier ...(E3) A. is very uncommon in vertebrates ©GRACEAMELIA 2024/2025 ACADEMIC YE...

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30 pages

Written in 2024/2025

Grade A+

GraceAmelia

PNB 2250 Exam 4 (UConn) Study Guide with Complete Solutions Allen's Rule - Ans:-Animal shapes minimizes heat loss in cold climates and heat gain in warm climates Related to surface/volume Arm length in tropical climates longer than arm length in cold climates Might be related to cartilage growth Effects of temperature Isometric growth - Ans:-◦ A change in size w/o a change in proportion ◦ E.g., as an animal doubles in size, the length of the legs also changes in proportion ◦ ...

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96 pages

Written in 2024/2025

Grade A+

GraceAmelia

PNB 2250 EXAM 2 PRACTICE QUESTIONS AND ANSWERS What are examples of thermal adaptation? (adapting to change in temp) (E2) - Ans:--Expression of alternative protein forms. -The presence of heat exchangers in the legs of ducks -Changes in gene transcription. -Previous exposure to elevated temperature What is not a part of thermal adaptation? (E2) - Ans:-A fever in response to an infection When elephant seals dive to a great depth...(E2) - Ans:-they don't breath (they DO NOT left shift) ...

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17 pages

Written in 2024/2025

Grade A+

GraceAmelia

PNB 2250 Exam 1 Study Set Questions and Answers Animals Traits - Ans:--distinguish them from plants and single cell organisms -eukaryotic, multicellular, complex tissues, differentiated tissues -heterotrophic: consume living or dead plants or animals -movement or sessile (stuck to something) Advantages of Multicellularity - Ans:-1. Cells dedicated to specific tasks, increase in efficiency 2. Not all genes expressed, saves energy 3. Cells farther away from surface (easier to maintain home...

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24 pages

Written in 2024/2025

Grade A+

GraceAmelia

PNB 2250 EXAM 1 PRACTICE QUESTIONS AND ASNWERS Which statement is true? a. Heme is commonly found within seawater b. Heme-based proteins played a key role in the metabolism of carbon dioxide into forms less toxic to cells. c. Heme-based proteins likely developed as a means by which Fe was transported safely. d. Oxygen binding to heme is insensitive to the presence of acid in mammals. e. Early anaerobic life used heme-based proteins to minimize oxygen toxicity. - Ans:-(e) Early anaerobic...

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34 pages

Written in 2024/2025

Grade A+

GraceAmelia

PNB 2250 Exam 1 Practice Questions and Answers

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2 pages

Written in 2024/2025

Grade A+

GraceAmelia

PNB 2250 Exam 1 Practice Questions and Answers What traits to animals share? - Ans:-Eukaryotic, heterotrophic, able to move Cell to cell connections in plants - Ans:-Plasmodesmo, flow of nutrients between cells Cell to cell connections animals - Ans:-Tight junctions, strong connection Some multicellularity advantages - Ans:-Cells have dedicated tasks (increase efficiency) Not all genes expressed (saves energy) Cells are further away from surface, ease on homeostasis Disadvantage of multi...

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17 pages

Written in 2024/2025

Grade A+

GraceAmelia

PNB 2250 EXAM 1-4 Questions (Final Review) Questions And Answers Latest Top Score. Which statement is true? (E1) a. Heme is commonly found within seawater b. Heme-based proteins played a key role in the metabolism of carbon dioxide into forms less toxic to cells. c. Heme-based proteins likely developed as a means by which Fe was transported safely. d. Oxygen binding to heme is insensitive to the presence of acid in mammals. e. Early anaerobic life used heme-based proteins to min...

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22 pages

Written in 2024/2025

Grade A+

Lectsadh

PNB 2250 EXAM 1-4 Final Review Questions And Answers With Latest Updates

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30 pages

Written in 2024/2025

Grade A

Nipsey

PNB 2250 Exam Verified Study Questions And Answers A fish in freshwater....(E3) A. rapidly loses water through the gills B. loses solutes through the gills C. must be an Osmo conformer D. actively pumps solutes out of its body through the gills E. must produce a very concentrated urine ANS D The presence of poly-unsaturated fatty acids in the cell membrane is decreased in larger animals with lower mass-specific metabolic rates(E3) A. true B. false C. this is dependent on animal ...

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13 pages

Written in 2024/2025

Grade A+

Nipsey

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...

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18 pages

Written in 2024/2025

Grade A+

Nipsey

PNB 2250 Exam 4 UCONN Questions And Answers With Latest Set

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54 pages

Written in 2024/2025

Grade A+

Nipsey

PNB 2250 Core Temperature Regulation Latest Study Guide Rated A+

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13 pages

Written in 2024/2025

Grade A+

Nipsey

PNB 2250 EXAM 2 Questions And Answers With Latest Updates What are examples of thermal adaptation? (adapting to change in temp) (E2) ANS -Expression of alternative protein forms. -The presence of heat exchangers in the legs of ducks -Changes in gene transcription. -Previous exposure to elevated temperature What is not a part of thermal adaptation? (E2) ANS A fever in response to an infection When elephant seals dive to a great depth...(E2) ANS they don't breath (they DO NOT left ...

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11 pages

Written in 2024/2025

Grade A

Nipsey

PNB 2250 Exam 1 Questions And Answers Plant specific cell to cell connections ANS plasmodesma animal specific cell to cell connections ANS tight junctions What systems are able to exist because of multicellularity? ANS Control systems and distribution What organisms have the highest number of genes? ANS Plants Why is the fossil record incomplete? ANS loss of soft tissue and DNA What is the extant ancestor to animals? ANS Choanoflagellate

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2 pages

Written in 2024/2025

Grade A

Nipsey

PNB 2250 EXAM 3 Questions And Answers With 2024/2025 Updates The presence of poly-unsaturated fatty acids in the cell membrane is decreased in larger animals with lower mass-specific metabolic rates(E3) A. true B. false C. this is dependent on animal shape D. This is only true for swimming animals E. this is only true for flying animals ANS A. true A size selective (but not solute selective) nephron filtration barrier ...(E3) A. is very uncommon in vertebrates B. is not found in ...

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18 pages

Written in 2024/2025

Grade A

Nipsey