Question

below is a food web from joshua tree national park, a desert ecosystem in southern california.which arrows show matter moving from a primary consumer to an omnivore? select all that apply.the arrow between the desert woodrat and the coyotethe arrow between the desert iguana and the kit foxthe arrow between the desert woodrat and the raventhe arrow between the beavertail cactus and the coyotethe arrow between the beavertail cactus and the raven

Explanation:

• Primary consumer: Organisms that eat producers (plants). In this food web, desert woodrat (eats creosote bush), desert iguana (eats plants like beavertail cactus), grasshopper (eats plants) are primary consumers.
• Omnivore: An organism that eats both plants and animals. Raven is an omnivore (it can eat both plant - based and animal - based food in the ecosystem shown).
• Analyze each option:
• Option 1: Desert woodrat (primary consumer) to coyote (carnivore, mainly eats animals like kit fox, desert woodrat etc., but not an omnivore in the context of this food - web analysis for this question). So this is incorrect.
• Option 2: Desert iguana (primary consumer) to kit fox (carnivore). So this is incorrect.
• Option 3: Desert woodrat (primary consumer) to raven (omnivore). This is correct as it shows matter moving from a primary consumer to an omnivore.
• Option 4: Beavertail cactus (producer) to coyote (carnivore). So this is incorrect.
• Option 5: Beavertail cactus (producer) to raven (omnivore). But we need primary consumer to omnivore. So this is incorrect.

Answer:

the arrow between the desert woodrat and the raven