1. What are the physical products of cellular respiration?

a. Oxygen and carbon dioxide
b. Nitrogen and carbon
c. Glucose and oxygen
d. Glucose and water
e. Water and carbon dioxide

2. If the biomass of flowers that support the butterflies was known to contain 100,000 units of energy, and certain bird species were eating the butterflies that foraged on the flowers, what amount of energy, on average, could be expected to be transferred to the birds?
a. 10
b. 100
c. 1,000
d. 10,000
e. 50,000

My answers:
1. c. glucose and oxygen
2. d. 10,000 (my teacher has said this was incorrect, but wouldn't 90% of the energy be lost, leaving it left to 10% remaining?

To answer the first question, the physical products of cellular respiration are option e. Water and carbon dioxide. Cellular respiration is the process by which cells convert glucose and oxygen into carbon dioxide, water, and energy in the form of ATP. This is an essential process for obtaining energy in living organisms.

Regarding the second question, the transfer of energy between trophic levels is governed by the 10% rule. According to this rule, only about 10% of the energy from one trophic level is transferred to the next trophic level. So, in this scenario, if the butterflies had 100,000 units of energy, you can expect only about 10% of that energy, which is 10,000 units, to be transferred to the birds. Therefore, the correct answer is d. 10,000 units of energy. Your initial response was correct.