Question

lets see if your claim is correct!

1. drag the correct organisms into the correct trophic levels to create each pyramid.
2. drag in the correct # of calories to each trophic level. the plants growing on your ship can produce 20,000,000 kcal (calories) per day.

vegetarian crew
carnivore crew
20,000,000 kcal 2,000,000 kcal
20,000,000 kcal 200,000 kcal
2,000,000 kcal

Explanation:

To solve the trophic level and calorie distribution for both crews, we use the 10% energy transfer rule (only ~10% of energy is passed to the next trophic level).

Vegetarian Crew (Plants → Humans)

Step 1: Producer Level (Plants)

Plants (producers) have the total energy they produce: \( 20,000,000 \, \text{kCal/day} \).

Step 2: Primary Consumer Level (Humans, Vegetarian)

Energy available to primary consumers (humans eating plants) is \( 10\% \) of producers’ energy:
\( 0.10 \times 20,000,000 = 2,000,000 \, \text{kCal/day} \).

Carnivore Crew (Plants → Cattle → Humans)

Step 1: Producer Level (Plants)

Same as before: \( 20,000,000 \, \text{kCal/day} \).

Step 2: Primary Consumer Level (Cattle, eating plants)

Energy to cattle: \( 10\% \) of producers’ energy:
\( 0.10 \times 20,000,000 = 2,000,000 \, \text{kCal/day} \).

Step 3: Secondary Consumer Level (Humans, Carnivorous)

Energy to humans (eating cattle) is \( 10\% \) of cattle’s energy:
\( 0.10 \times 2,000,000 = 200,000 \, \text{kCal/day} \).

Organism Placement

• Vegetarian Crew Pyramid:
• Bottom (Producer): Plants (\( 20,000,000 \, \text{kCal} \)).
• Top (Primary Consumer): Vegetarian humans (\( 2,000,000 \, \text{kCal} \)).

• Carnivore Crew Pyramid:
• Bottom (Producer): Plants (\( 20,000,000 \, \text{kCal} \)).
• Middle (Primary Consumer): Cattle (\( 2,000,000 \, \text{kCal} \)).
• Top (Secondary Consumer): Carnivorous humans (\( 200,000 \, \text{kCal} \)).

Final Calorie Distribution

Trophic Level	Vegetarian Crew Calories	Carnivore Crew Calories
Primary Consumer	\( 2,000,000 \, \text{kCal} \)	\( 2,000,000 \, \text{kCal} \)
Secondary Consumer	N/A (no secondary level)	\( 200,000 \, \text{kCal} \)

Answer:

(Calorie Placement)

• Vegetarian Crew: Bottom = \( 20,000,000 \, \text{kCal} \), Top = \( 2,000,000 \, \text{kCal} \).
• Carnivore Crew: Bottom = \( 20,000,000 \, \text{kCal} \), Middle = \( 2,000,000 \, \text{kCal} \), Top = \( 200,000 \, \text{kCal} \).

(For organism drag-and-drop: Vegetarian Crew bottom = Plants, top = Vegetarian humans; Carnivore Crew bottom = Plants, middle = Cattle, top = Carnivorous humans.)