Question 8 (0.4 points) An ecological pyramid is sometimes used to show both the flow of matter and energy in an ecosystem. The pyramid narrows as matter and energy flow from the bottom to the top. Draw a conclusion about what this pyramid tells you about the energy in this ecosystem.
Question 8 options:

Energy stays the same. Only the number of living things change.

Energy decreases from the top to the bottom as organisms are larger in size.

Energy increases from bottom to top because the organisms get larger in size.

Energy decreases from bottom to top because some is used at each level for life processes
Question 9 (0.4 points)

Lemon Juice
Tums (antacid)
Water

Put all of the above household items in order from lowest to highest pH.
Question 9 options:

Lemon juice, water, Tums

Water, Tums, Lemon Juice

Water, Lemon Juice, Tums

Tums, water, lemon juice
Question 10 (0.4 points)

Review the desert food web above. What organism, absent in the web, would be MOST responsible for recycling organic matter back through the food web?
Question 10 options:

cougars

bacteria

sage brush

cactus plants