Environmental Science Test

I need an explanation for this Environmental Science question to help me study.

Need a tutor with expertise in environmental science. 60 questions in 50 minutes. Below are some sample questions to help you understand the exam content. 1.temperate deciduous forests are characterized by 2.the sea lamprey is a ___ of large fish in the Great Lakes A.parasite B.host C.predator D. Prey 3.the energy content, biomass, and number of individuals is lowest in which of these level of an ecological pyramid A secondary consumers B. primary consumers. C.decomposers D. producers 4. male ibex fighting for mating access is an example of 5.overharvesting is less of a threat to__