Daphnia Heart Rate Lab Report
TM
How Does Temperature Affect
Daphnia Heart Rate?
Student Study Guide
DID YOU KNOW?
The body temperature of the
Arctic squirrel drops from
98.6°F to 26.4°F, which is below the freezing point of water and is the lowest known body temperature of any living mammal.
DID YOU KNOW?
The average body temperature of the following warmblooded animals are:
Humans:
98.6°F
Rabbit:
101.3°F
Polar bear:
99.1°F
Blue whale:
95.9°F
Owl:
104.4°F
Ostrich:
102.6°F
BACKGROUND
Every animal has an ideal temperature range in which they are best able to survive. For some this may be in the intense desert heat while others may prefer frigid polar climates. But in each case, the body temperature must remain within the acceptable limits …show more content…
An alternative type of thermal physiology is referred to as ectothermy. Ectotherms rely almost entirely on environmental sources of heat to warm their bodies. Most invertebrates, fishes, reptiles, and amphibians are included in this classification. The term “coldblooded” is often used to describe ectotherms, but this is sometimes misleading. Often times these so-called cold-blooded animals actually have active body temperatures that are higher than those of mammals. An example of this is seen in the desert iguana
Copymaster. Permission granted to make unlimited copies for use in any one school building. For educational use only. Not for commercial use or resale.
1
© 2002 WARD’S Natural Science Establishment, Inc.
All Rights Reserved
DID YOU KNOW?
Daphnia produce most of their young without mating.
This is known as parthenogenic reproduction.
(Dipsosaurus dorsalis), which has one of the highest preferred body temperatures known for any vertebrate - 100º to 108º Fahrenheit!
The advantage of being an ectotherm is that very little energy is used to maintain body temperature, since this is taken care of by the environment. For example, when a lizard’s body temperature is cool,
How Does Temperature Affect
Daphnia Heart Rate?
Student Study Guide
DID YOU KNOW?
The body temperature of the
Arctic squirrel drops from
98.6°F to 26.4°F, which is below the freezing point of water and is the lowest known body temperature of any living mammal.
DID YOU KNOW?
The average body temperature of the following warmblooded animals are:
Humans:
98.6°F
Rabbit:
101.3°F
Polar bear:
99.1°F
Blue whale:
95.9°F
Owl:
104.4°F
Ostrich:
102.6°F
BACKGROUND
Every animal has an ideal temperature range in which they are best able to survive. For some this may be in the intense desert heat while others may prefer frigid polar climates. But in each case, the body temperature must remain within the acceptable limits …show more content…
An alternative type of thermal physiology is referred to as ectothermy. Ectotherms rely almost entirely on environmental sources of heat to warm their bodies. Most invertebrates, fishes, reptiles, and amphibians are included in this classification. The term “coldblooded” is often used to describe ectotherms, but this is sometimes misleading. Often times these so-called cold-blooded animals actually have active body temperatures that are higher than those of mammals. An example of this is seen in the desert iguana
Copymaster. Permission granted to make unlimited copies for use in any one school building. For educational use only. Not for commercial use or resale.
1
© 2002 WARD’S Natural Science Establishment, Inc.
All Rights Reserved
DID YOU KNOW?
Daphnia produce most of their young without mating.
This is known as parthenogenic reproduction.
(Dipsosaurus dorsalis), which has one of the highest preferred body temperatures known for any vertebrate - 100º to 108º Fahrenheit!
The advantage of being an ectotherm is that very little energy is used to maintain body temperature, since this is taken care of by the environment. For example, when a lizard’s body temperature is cool,