2007-03-06 06:38:49 · 5 answers · asked by circusgirl322 1 in Science & Mathematics ➔ Biology
Reptiles are cold-blooded by nature. They require external heat sources to produce energy that allows them function through out the day. They also pause on warm sand or rock after meals to aid in digestion.
This is the reason that most pet store require you to buy either a heat lamp or heat rock upon purchasing a reptile. Without heat a lizard would actually starve to death.
2007-03-06 07:05:38 · answer #1 · answered by Amy G 2 · 0⤊ 0⤋
Lizards are cold blooded. What this means is that they rely on sunlight and other external sources of warmth to regulate their body temperature.
Human and all mammals are warm blooded meaning that they maintain a particular temperature by internal processes.
2007-03-06 14:44:14 · answer #2 · answered by bsandyman 3 · 2⤊ 0⤋
Because they are cold blooded animals and need the heat in order to have the energy hunt and move.
2007-03-06 14:43:19 · answer #3 · answered by diogenese_97 5 · 2⤊ 0⤋
they are cold blooded and the sun warms them up.
2007-03-06 14:42:53 · answer #4 · answered by i,m here if you need to talk. 6 · 2⤊ 0⤋
because the are cold blooded and they want to get warm to increase their activity
2007-03-06 15:06:18 · answer #5 · answered by NNY 6 · 1⤊ 0⤋