Which condition is necessary for a mold fossil to form? a. the fossil must be preserved in amber. b. minerals must replace the remains. c. the mold must be filled with sediment. d. hard parts of the organism must dissolve.

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