Technology can have positive and negative effects. what is one negative effect of spraying a chemical pesticide on crops?

Which layer will become saturated first when rain falls?

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above