Base your answer to the following question on the diagram below and on your knowledge of biology. The diagram represents a food web in an ecosystem.
Which row in the chart below best identifies the relationships between the mice and the wheat?
Base your answer to the following question on the information below and on your knowledge of biology.
An aquarium container is filled with water and colonies of aquatic plants and animals. Various protists are added and the aquarium is then sealed and placed on a window ledge. After a period of time the aquarium appears to reach a state of balance.
Which group of organisms in the aquarium contains the largest amount of energy?
Which row in the chart below best describes decomposers?
Base your answer to the following question on the passage below which describes an ecosystem in New York State and on your knowledge of biology.
The Pine Bush ecosystem near Albany, New York, is one of the last known habitats of the nearly extinct Karner Blue butterfly. The butterfly's larvae feed on the wild green plant, lupine. The larvae are in turn consumed by predatory wasps. The four groups below represent other organisms living in this ecosystem.
The Karner Blue larvae belong in which group?
The diagram below represents interactions that occur between some organisms in an ecosystem.
Which factor would most likely cause an increase in the number of frogs?
The diagram below represents a food web.
Which statement regarding organisms in this food web is correct?
Which sequence best represents the flow of energy through an ecosystem?
An enzyme catalyzed reaction will have a activation energy, and this leads to a(n) in the reaction rate.
Refer to the image below, in the enzyme-substrate complex, what is happening during step 2?
Graph I shows the relationship between the relative rates of activity of enzymes A and B and temperature. Graph II shows the relationship between the relative rates of activity of enzymes A and B and pH.
Under which conditions is enzyme A most effective?
Which graph shows the most effective enzyme reduction of the amount of required
activation energy?
Drag and drop the words labeled a through e in the diagram below.

Which letter(s) are labeled for phosphate(s)?
Select all that you would need to create an ATP molecule in ATP-ADP cycle.
What happens when the 3rd phosphate is removed from the ATP? Select all that apply.
Select the bond that holds the maximum amount of energy.
