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Endotherms and Ectotherms - Coggle Diagram
Endotherms and Ectotherms
Endotherms
Endotherms are usually animals such as mammals and birds
Endotherms rely on their internal metabolic processes to regulate their temperature
Endotherms can survive in a number of environments
Desert
Arctic
Forest
Grasslands
Known as 'warm blooded'
Ectotherms
Ectotherms mainly live in places such as tropics or oceans
Animals like reptiles and fish are ectotherms
Ectotherms use their environment to heat up
Lizards lay on black rocks to absorb heat more quickly
Advantages
Can use more energy from food in growth
Needs less food
Use less food in respiration
Animals that rely on the external environment to control their temperature instead of generating their own heat
Known as 'cold blooded'
Disadvantages
Lots of energy used on regulation of body temperature
More food needed
Less energy from food goes into growth
Advantages
Constant temperature
Active even in cold temperatures
an inhabit colder countries and environments
Disadvantages
Less active in cooler temperatures
May not be active during winter due to hibernation
The Namaqua Chameleon
Lives in the namib desert
Very inhospitable and there is a lack of water
Physiological adaptations
It is black in the morning, it may appear black on the side facing the sun
Absorbs radiation quicker
It has increased heart rate early in the morning
circulates warm blood around the body
It inflates its body early in the morning
Larger surface area to absorb heat
Deflates its body during the day
Less distance for the blood to travel
The animal becomes a pale grey
The heart rate slows
less heat being used
Behavioral adaptations
It orientates itself sideways to the sun
It presses its body into the desert floor during the morning
Conducts heat into its body
It holds itself away from the desert floor during the day
The floor would be too hot