What was not a general characteristic of the western Sudanese kingdoms of Ghana, Mali and Songhai?

The Islamic religion in West Africa ________.

In West African culture, the family includes those who are yet to be born, those who have died, as well as those who are alive.

What  is the larval stage of the starfish called?

“Jointed foot” refers to the:

Which of the following allows water to enter the starfish?

Of the following, which secretes hirudin?

Of the following, which refers to animals?

Animals that are hunted are said to be:

Response to a stimulus is called: