Which in the following animals is an endotherm

snake, lizard, horse, grasshopper.

To determine which of the following animals is an endotherm, we need to understand the characteristics of an endotherm. Endotherms are animals that can generate their own body heat and maintain a relatively constant internal body temperature.

Out of the given options, the horse is an endotherm. Horses are warm-blooded mammals, and they have the ability to regulate their body temperature through metabolic processes. This allows them to adapt to various environmental conditions.

To verify this information, the quickest way is to perform a simple internet search using a search engine such as Google. Type in "are horses endotherms" or "horse thermoregulation" and look for reliable sources like scientific articles or educational websites. These sources will provide detailed explanations and evidence to confirm that horses are indeed endothermic animals.

https://www.google.com/search?source=hp&ei=l2LUXdDHAYHmtQXEm7GYCw&q=endotherm&oq=endotherm&gs_l=psy-ab.3..0l9j0i131.4477.4477..6315...0.0..0.85.85.1......0....2j1..gws-wiz.3mM_K9m-nA0&ved=0ahUKEwiQ7_Pqn_flAhUBc60KHcRNDLMQ4dUDCAg&uact=5