Sam is conducting an experiment on plants in which he hypothesized, "If plants grow under green light, then the leaves will change colors." Which of the following is true of his experiment? 1. The color of light is the dependent variable.
2. Sam will be collecting quantitative data.
3. Sam will be collecting qualitative data.
4. The changing color of the leaves is the independent variable.

answer; ///stratum basale///stratum spinosumstratum granulosumstratum lucidumstratum corneum; 2,1,5,4,3

the cell is the smallest structural and functional unit of living organisms, which can exist on its own. therefore, it is sometimes called the building block of life. some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.