Campbell Biology
Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
Question
Book Icon
Chapter 40.4, Problem 3CC
Summary Introduction

To explain: The changes in the metabolic rate in an alligator and a lion resting in a zoo, when at night the air temperature lowers down.

Concept introduction:

Thermoregulation is an ability of an organism to maintain its body temperature. Animals are categorized into two types based on their thermoregulation mode: ectotherms and endotherms. Ectotherms are animals that get warmed by external sources, whereas endotherms maintain their body temperature based on internal metabolism.

Blurred answer
Students have asked these similar questions
上午11:07 1月22日周六 * 100% •.. •.. 58. Living organisms must acquire energy from their environment. Examples of adaptations that help organisms acquire this energy include which of the following? I. The dark, heat-absorbing coloration of a reptile. II. The fangs and claws of a lion III. The light coloration of a peppered moth (A) I only (В) П only (C) I and II only (D) II and III only (E) I, II, and III
What best describes the graph on the LEFT? 28 A Walk o Trot • Gallop 24 100 20 Gallop 16 50 12 Trot 8 Walk 4 6 7 1 2 3 4 5 Running speed (m s-1) Running speed (m s-1) The graph on the LEFT shows how Metabolic Rate changes, with changes in running speed The graph on the LEFT shows how running speed changes, with changes in metabolic Cost of Transport The graph on the LEFT shows how Resting Metabolic Rate changes, with changes in running speed The graph on the LEFT shows how Metabolic Cost of Transport changes, with changes in running speed Rate of oxygen consumption (ml 02 s-1) Millilitres of oxygen consumed to move 1 m
In ecological systems, a rough rule of thumb is that when energyis transferred from plants to plant-eaters or from preyto predator, the efficiency is only about 10% (p. 72). Muchof this inefficiency is a consequence of the second law ofthermodynamics. Another way to think of this is that eating 1calorie of material from an animal is the ecological equivalentof eating 10 calories of plant material.Humans are considered omnivores because we can eat bothplants and animals. Our food choices have significant ecologicalimpacts. With this in mind, calculate the ecologicalenergy requirements for four different diets, each of whichprovides a total of 2000 dietary calories per day. What percentages of the calories in your own diet do youthink come from plant versus animal sources? Estimatethe ecological impact of your diet, relative to a strictlyvegetarian one.
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning