chapter 1 testing your comprehension

please answer each question in it entirity

• Differentiate an ion from an isotope?
• What substances are produced by photosynthesis? By cellular respiration?
• What role do each of the following play in the carbon cycle?
                      
                         
                             Cars
                         
                         
                             Photosynthesis
                         
                         
                             The oceans
                         
                         
                             Earth’s crust
• For a conservation biologist interested in sustaining populations of the organisms below, why would it be helpful to take a landscape ecology perspective? Explain your answer in each case.
                      
                         
                             A forest-breeding warbler that suffers poor nesting success in small fragmented forest patches
                         
                         
                             A bighorn sheep that must move seasonally between mountains and lowlands
                         
                         
                             A toad that lives in upland areas but travels cross-country to breed in localized pools each spring.