Oxygen is attached to
a) an iron atom located on the heme portion of hemoglobin
b) an iron atom located on the globin portion of hemoglobin
c) a calcium atom located on the globin portion of hemoglobin
d) a calcium atom located on the heme portion of hemoglobin

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.

To store strawberries in sugar syrup, lucy placed them in a jar and covered them with sugar but did not add any water. do you think syrup will be formed? justify. a. no. since water is not added, there cannot be any syrup formation. b. no. the higher concentration of sugar on the outside will cause the water from the sugar to diffuse in the strawberry cells causing them to swell without formation of any syrup. c. yes. the higher concentration of sugar on the outside will cause the water from the strawberry to diffuse out resulting in syrup formation. d. yes. the sugar will melt over time and form the syrup.