According to the law of conservation of matter, the matter is not created or destroyed, it only changes form. Once carbon becomes part of the biotic components of the carbon cycle, how does it re-enter the atmosphere? All BUT ONE could apply. A) respiration
B) ocean uptake Eliminate
C) factory emissions
D) combustion of fossil fuels

Which symbols below represent the ions found in the glass of water ? a. oh- and h+ b. co2 and o2 c. o2 and h2 d. nh3- and h+

9. wind power creates pollution. water air soil noise

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.