Where does crude oil come from? A. Bauxite reserves

B. Ancient sea life

C. Volcanic magma

D. Ancient plants

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen

Amap's orientation is typically determined by an