Both animals are primary consumers - first level.
No first level consumer will eat a mouse because first level consumers don't eat meat. A second level consumer (a carnivore or omnivore) would eat a mouse.
Both animals are primary consumers - first level.
Mouse
which animal is NOT a first-level consumer Deer Bird Caterpillar Mouse
A third-level consumer is an animal which eats any animal in the second level category, the only animal that would eat the animal would be a fourth level consumer which is not normally found in a ecosystem. You place a certain level consumer on top of the animal it eats. like a mouse would be a first level consumer, since it eats grass which is a producer, then, the owl whcih eats the mouse would be a second level consumer since it eats that first level consumer, rat.
2nd
consumer! secondary consumer, to be exact.
Omnivores that eat both plants and animals are both a primary and secondary consumer.
The short answer is, "NO". they are considered 2nd level consumers. First level consumers are animals such as Mice, who feed on plants, plant-based, etc.. Since a Rattlesnake would eat a mouse, it would be considered 2nd level. An example of a 3rd level consumer would be a hawk, or some other bird of prey, eating the snake.
ANSWER: The mouse is a Tertiary consumer, it consumes spiders, which consume grasshoppers, which consume grass. Making Grasshoppers primary consumers, spiders secondary consumers, and Mice Tertiary consumers.
Mice are categorized as primary consumers because they eat primary producers such as seeds.
A mouse is a consumer.