Explain how fossils can be used to learn about earth’s past climates. (is there a way to tell, is it like relative dating?)

Which term describes the number of waves that pass a given point in a given time? crest frequency trough wavelength

Types of scientific inquiry that biologist engage in that cannot be completely controlled

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