Answer:Plants are simpler organisms than animals, having three organ systems and fewer organs than do vertebrate animals. Organs are composed of tissues, which are in turn composed of cells. Plants have three tissue types: ground, dermal, and vascular. Animals have four: epithelial, connective, muscle, and bone.
Explanation:
Answer:
Meters/grams are the most common.
Explanation:
Grams are very exact and meters are also common to use.
I think it's A....hope that helps at least