Cells such as verve and muscle cells contain more mitochondria than cells. why?

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?

Which is a genetic engineering advancement directly related to a career in biotechnology? 1) improving solar energy collection 2) transporting textiles at higher rates 3)creating crop foods that resist insect pests 4)repairing historical sites with quality materials

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?