PLEASE HELP! Classify each of the following as a macronutrient, a micronutrient, or both for plants.

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

What causes darkening of the skin as melanin production increases