The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming. Given: The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time. The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other. Introduction: Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Question

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Answer 1

Question

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

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Answer 2

Question

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

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Answer 3

Question

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

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Answer 4

Question

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

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Answer 5

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

Answer 6

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

Answer 7

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Answer 8

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

Answer 12

Ch. 39.1 - Prob. 1R Ch. 39.1 - Prob. 2R Ch. 39.1 - Prob. 3R Ch. 39.2 - Prob. 1R Ch. 39.2 - Prob. 2R Ch. 39.2 - Prob. 3R Ch. 39.3 - Prob. 1R Ch. 39.3 - Prob. 2R Ch. 39.3 - Prob. 3R Ch. 39.4 - Prob. 1R

Explanation of Solution

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Chapter 39 Solutions