Building a mass transit system is likely to have which of the following effects?

a.) increasing air pollution
b.) traffic congestion
c.) increasing the temperature of the urban heat island
d.) none of the above

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

What element does susan b. anthony include in this passage to strengthen her argument?

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from