Q: What was diorite commonly used for in ancient civilizations? Choices: - school - currency - medicine - art A:
art

Q: What is the study of how living organisms interact with each other and with their environment? Choices: - botany - zoology - genetics - ecology A:
ecology

Q: What are embedded in the membranes of b cells and bind a variety of antigens through their variable regions? Choices: - b.a.p cell receptors - a.m. cell receptors - er cell receptors - b cell receptors A:
b cell receptors