Concerning skin color, which of these statements is not correctly matched? a. skin appears yellow -- carotene present b. no skin pigmentation (albinism) -- genetic disorder c. skin tans -- increased melanin production d. skin appears blue (cyanosis) -- oxygenated blood e. african americans darker than whites -- more melanin secreted by melanocytes in african american skin

Explain why the plants cortex would serve as the best food source for animals

Individuals do not compete directly for resources, but are prey for the same predator

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