Question

kelp food web
seaweed, phytoplankton, copepod (zooplankton), sea urchin, crab, sea otter
table with organism (seaweed, phytoplankton, copepod, sea urchin, crab, sea otter) and columns: where do they get energy? (what do they eat?), name which category each organism would fall under: producer, herbivore, omnivore or carnivore

Explanation:

To determine the energy source (what they eat) for each organism in the kelp food web:

• Seaweed: Producers (like seaweed) get energy from sunlight via photosynthesis (they “eat” sunlight, carbon dioxide, and water to make food).
• Phytoplankton: Also producers, use photosynthesis (energy from sunlight, CO₂, H₂O).
• Copepod (zooplankton): Herbivore, eats phytoplankton (from the food web arrow: Phytoplankton → Copepod).
• Sea Urchin: Herbivore, eats seaweed (arrow: Seaweed → Sea Urchin).
• Crab: Omnivore (likely eats sea urchin, copepod, or phytoplankton? Wait, the food web has arrows to Crab from Sea Urchin, Copepod, and Phytoplankton? Wait, the table’s “Where do they get energy (what do they eat)?” column: For Crab, look at the food web. The arrows to Crab: from Sea Urchin, Copepod, and Phytoplankton? Wait, the table’s pre - filled “which category” for Crab is omnivore, so it eats both plants/plant - eaters and animals. But let's match the table:

Looking at the table rows (Organism: Seaweed, Phytoplankton, Copepod, Sea Urchin, Crab, Sea Otter):

• Seaweed: Producer, energy from sunlight (photosynthesis: sunlight, CO₂, H₂O).
• Phytoplankton: Producer, energy from sunlight (photosynthesis).
• Copepod: Herbivore, eats Phytoplankton (food web arrow: Phytoplankton → Copepod).
• Sea Urchin: Herbivore, eats Seaweed (food web arrow: Seaweed → Sea Urchin).
• Crab: Omnivore, likely eats Sea Urchin, Copepod, and/or Phytoplankton (food web arrows to Crab from those).
• Sea Otter: Carnivore, eats Crab (food web arrow: Crab → Sea Otter) and maybe Sea Urchin? Wait, the table’s “which category” for Sea Otter is carnivore, so it eats animals (Crab, Sea Urchin? The food web has an arrow from Crab to Sea Otter and from Sea Urchin to Sea Otter? Wait, the table’s pre - filled “which category” for Sea Otter is carnivore.

Let's fill the “Where do they get energy (what do they eat)?” column:

• Seaweed: Sunlight (photosynthesis: uses sunlight, CO₂, H₂O to make glucose).
• Phytoplankton: Sunlight (photosynthesis).
• Copepod: Phytoplankton (herbivore, eats the producer phytoplankton).
• Sea Urchin: Seaweed (herbivore, eats the producer seaweed).
• Crab: Sea Urchin, Copepod, Phytoplankton (omnivore, eats both plants/producers and animals/consumers).
• Sea Otter: Crab, Sea Urchin (carnivore, eats other consumers like Crab and maybe Sea Urchin; the food web has arrows from Crab and Sea Urchin to Sea Otter? Wait, the food web shows arrows to Sea Otter from Crab and Sea Urchin? Let's check the food web: Sea Urchin → Crab? No, Seaweed → Sea Urchin; Phytoplankton → Copepod; then arrows to Crab: from Sea Urchin, Copepod, Phytoplankton? And arrows to Sea Otter: from Crab and Sea Urchin? So Sea Otter eats Crab and Sea Urchin (carnivore, eats consumers).

Answer:

Organism	Where do they get energy (what do they eat)?
Phytoplankton	Sunlight (photosynthesis: CO₂, H₂O, sunlight)
Copepod	Phytoplankton
Sea Urchin	Seaweed
Crab	Sea Urchin, Copepod, Phytoplankton
Sea Otter	Crab, Sea Urchin