Which makes bacterial infections difficult to defeat?
O
A. Bacteria reproduce quickly.
O
B. Bacteria live inside the body's cells.
O
C. Macrophages cannot kill bacteria.
O
D. Killer T cells cannot reproduce.

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

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Which factor that affects biodiversity?