In deciding whether to use technology, people must analyze. A: only the benefits B: both risks and benefits C: only the risks D: neither the risks nor benefits.

All of the following are part of the biosphere except

Particles vibrate in a rigid structure and do not move relative to their neighbors.

Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products