One reason the cultures of north africa developed differently from the cultures of the rest of africa was that these areas of africa were separated by the a) arabian sea. b) sahara desert. c) congo river basin. d) great rift valley.

What happens if you look at the sun through a magnifying glass? would it be any worse than just looking at the

In shallow water at the beach, manuel saw an animal whose body was protected by hard plates. its body also had radial symmetry. the animal pumped water into its tube feet to move. which invertebrate group does this animal belong to? a. mollusks b. echinoderms c. sponges d arthropods

The unity of the people of the philippines has been strongly influenced by the