§1.8 Warm and cold-blooded

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§1.8 Warm and cold-blooded

What type (class) of animals
are warm-blooded?

What class of animals
are cold-blooded?

Warm-blooded

Organisms with a constant body temperature

Temperature maintained through respiration rate

Lower temperatures? --> More respiration

Avg. body temperature mammals ±36-38ºC

Avg. body temperature birds ±41 ºC

(*some hibernate)

Cold-blooded

Organisms with an environmental dependant body temperature

Respiration rate depends on body temperature

Higher temperature --> 
more metabolism -->
higher respiration rate

Read Basic 1.8, page 55-56

Make §1.8, exercise 1, 2, 4