The continental crust is than the oceanic crust and seems to "float" on the mantle. a) thinner b) younger c) less dense d) mostly basalt

Natalie had random hand movements when she was two months old. when she was six months old, she used to grab a block with her whole hand. now at the age of ten months, she can grasp the same block with her thumb and forefinger. this sequence of growth in her hand and finger movements is according to the pattern.

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

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