What goes in the blank before está en la sala de clases

U there nothing there and I cant comment I wanna help you but I cant if you explain then I would be happy to help you!

Explanation:

when the outside temperature is too cold, an endothermic animal can generate heat by shivering. endothermic animals must eat much more often than ectothermic animals since it takes energy to maintain a constant body temperature.

ummmthings that are different in peru than in the united states:

1. granola bars: they are not made of granola. they are made of quinoa and other grains that remind me of the millet i feed my birds at home. they have the texture of styrofoam but are cheap and comparatively healthy.