Question

1. all of the following are considered biotic factors except scavenger detritovores carnivores volcanic eruptions 4. which of these trophic levels is the highest? secondary consumers tertiary consumers quaternary consumers primary consumer 9. gerald is studying the plants and animals of a meadow. he classifies the grasses and clover as ( ) because they make their own food.

Explanation:

1. Biotic factors are living components of an ecosystem. Scavengers, detritivores, and carnivores are living organisms, while volcanic eruptions are abiotic (non - living) events.
2. In a food chain, the trophic levels from lowest to highest are primary consumers, secondary consumers, tertiary consumers, and quaternary consumers. Quaternary consumers are at the top of the food chain and have no natural predators within that food chain.
3. Organisms that make their own food through photosynthesis are called producers. Grasses and clover are plants that can photosynthesize, so they are producers.

Answer:

1. Volcanic eruptions
2. Quaternary Consumers
3. Producers