Answer:
my teacher taught me a simple because it uses "like" or "as" always!
they come from greek roots
example, gravitropsim
gravi is gravity
tropos means 'turning'
so means turning to gravtity
phototroposism
photos=light
tropos='turning'
so it means turning toward the light
photosynthysis
photos=light
synthysis=tuning into or transforming into a useable form
so it means turning light into a usable form
The main idea of the paragraph would be the penguins camouflage and feathers help them in their survival
3 supporting facts would be: it makes them hard to see in the ocean for predators, they blend with they sky, their feathers protects them while swimming and keeps them warm.
(this could be worded better but yeah, hope I could help!)