11.1

Question 1

Biomass

Answer 1

the amount of matter that’s stored in the bodies of a group of organisms.

Question 2

Productivity

Answer 2

the rate at which energy is added to the bodies of organisms in the form of biomass

Question 3

Efficiency

Answer 3

the efficiency with which energy is transferred from one trophic level to the next

Question 4

Photosynthesis

Answer 4

In- CO2, H2O, sunlight
Out- glucose and O2

Question 5

Respiration

Answer 5

In- glucose and oxygen
Out- carbon dioxide, water, and energy

Question 6

What type of organisms perform the processes of photosynthesis and cellular respiration

Answer 6

photosynthesis- plants

cellular respiration- all living organisms

Question 7

What is shown in a pyramid of energy vs. # vs. biomass

Answer 7

s: the total number of individual organisms at each trophic level within an ecosystem

energy: trophic levels contain more or less energy and how that energy is transferred between them.

Biomass: the total mass of living organisms at each trophic level within an ecosystem

Question 8

Apply the rule of 10 to an energy pyramid to determine the energy available at each trophic level

Answer 8

each trophic level can only give 10% of its energy to the next level. The other 90% is used to live, grow, reproduce and is lost to the environment as heat.

Question 9

Explain why it is considered more efficient to eat at a lower trophic level vs. a higher trophic level

Answer 9

there’s less energy loss in the transfer of energy between levels. This means that to get the same amount of energy from consuming a higher trophic level, like meat, you need to consume significantly more resources, including land, water, and energy, compared to consuming a lower level, like plants.

Question 10

Predict how the amount of solar energy in a location relates to productivity

Answer 10

In general, a location’s productivity, whether agricultural or industrial, is positively correlated with the amount of solar energy it receives