Well, considering that seagulls, bears, and cows are warm blooded mammals, and spiders are arachnids with an exoskeleton, I'm willing to bet that spiders are ectothermic. And isn't the word exothermic?
I believe it is <u>instinct </u>that is the behavior of the caterpillar building a cocoon.
the broken rock layers of mostly solid rock is true
Fragmentation never occur in a unicellular organism !!
