According to the law of conservation of matter, in any food chain we know that a) the quantity of matter in producers and consumers is always equal. b) matter is created at the start of a food web and destroyed in the end. eliminate c) matter is changed into various forms but the total quantity remains unchanged. d) the amount of matter increases as the food web progresses from the producers to the consumers.

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