Question 35
which of the following reflects one of the current favored explanations of african poverty?
o tropical environments
o depopulation due to the slave trade
o hiv/aids epidemic
o infertile soils
o lack of navigable rivers

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