Which of the following statements is true? in a balanced ecosystem, the number of trees is less than the number of giraffes. decomposers recycle energy by breaking down dead organisms into essential chemicals. as population density increases, interspecific competition decreases. a parasitic relationship is beneficial to the parasite but not to the host.

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.