Which of these is an example of structural protein in plants?

a.) chitin
b.) lignin
c.) keratin

Explain how scientist from the scientific revolution and the catholic church tie together

The source of wealth for the city-states of the east african coast was trade between the interior of africa and the far east. true false

Popular sovereignty is the principle that governmental authority is derived from the people. under this principle, government governs with the consent of the governed. explain this concept in your own words. is this principle important to you? why or why not?