Biology 11 Cumulative Final Exam

Looking at the graph, what is the independent variable?

• cost of mowing
• Moe's Mowing Service
• $18
• Mowing Time

If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars (rate of photosynthesis)?

• Sugar production will likely increase.
• Sugars will not be produced.
• The rate of sugar production will decrease .
• Fewer sugars will be produced at first, but then the plant will recover.

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• control variables
• control experiment

Only about ten percent of the energy stored in a Minnesota lake ecosystem's fish can be passed on to the next trophic level. Of the remaining energy, some is used for the fish’s life processes, and the rest is typically

• used in reproduction

• stored as body fat

• stored as body tissues

• converted to heat and lost

Mutations are harmful changes to the DNA of an organism?

• True

• False

Answer explanation

Mutations can give an organism an advantage in its environment therefore not alsways harmful

________ has to be split during the light dependent reactions so that the electrons that have left photosystem II can be restored.

• H₂O
• CO₂
• ATP
• NADPH

If your body runs out of oxygen, it will begin to perform ______.

• alcohol fermentation
• photosynthesis
• cellular respiration
• lactic acid fermentation

Which conclusion is supported by this diagram?

• river otters are tertiary consumers and have the least energy avialable to them

• crayfish are secondary consumers and have the most energy available to them

• phytoplankton are primary producers and have the least energy available to them

• zooplankton are secondary producers and have the most energy available to them

Air is matter. We found that the weight of the ball increases by .5lbs each time we pumped more air into it. This shows that air has weight, one of the characteristics of matter.
Which sentence is the reasoning?

• Air is matter.

• We found that the weight of the ball increases by .5lbs each time we pumped more air into it

• This shows that air has weight, one of the characteristics of matter.

Answer explanation

The correct reasoning is "This shows that air has weight, one of the characteristics of matter." This sentence directly connects the observation of increased weight to the conclusion about air's properties.

Which of the following correctly describes ASEXUAL reproduction?

• One parent, genetically identical offspring
• One parent, genetically different offspring
• Two parents, genetically identical offspring
• Two parents, genetically different offspring