Which of the following is an example of a key element of Jean Piaget’s theory of cognitive development? A. Stephani’s reading progressed the same from seventh grade to eighth grade as it did from first grade to second grade.

B. Catherine finally realized her grandfather is her father’s father.

C. Erin excelled at math despite the fact that she did not have good math teachers.

D. Courtney’s ability to read was equally influenced by all the books in her home and her age.

E. Spencer’s vocabulary increased by the same number of words every ten years throughout his life.

Which kind of organism is a heterotroph?

What is the main subject of this map? a. world war i in europe b. nazi aggression in europe c. world war ii in europe d. europe during the cold war

1of the following choices, which one best describes one way that christianity came to east africa? a. christians traveled in caravans through the sahara desert and introduced the people of mali to a new religion. b. christian traders from the mediterranean interacted with the people of axum. c. christian military from west africa traveled across the continent to bring their religion to the people of east africa. d. christian rulers from asia traveled to east africa to bring their religion to the people. 2 which trade item from outside the region did west africans need most? a. gold b. camels c. salt d. iron