What did darwin believe?
darwin believed that all organisms have a common ancestor.
darwin believed that all organisms were created simultaneously by the force of nature.
darwin believed that all organisms have descended from two different ancestors.

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

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?

The mixture of sperm and fluids from the seminal vesicles, prostate gland, and cowper's glands is called