The ways in which people change the world around them to meet their needs or solve practical problems are called a. science. c. feedback. b. technology. d. systems.

What must happen before a body cell can begin mitotic cell division

Identify and describe the three ways that mutations affect organisms.

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.