The wide-spread destruction of elm trees in the United States was caused by . A- Basidiomycota B- the Dutch elm bacteria
C-Ceratocystis ulmi
D-widespread drought

Which step if the scientific method relies more heavily on newly collected data than on creativity and innovation

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

Which level of consumer had access to the smallest apply of energy