Question

which one is not an example of a producer? *
grass
oak tree
wolf
algae
which trophic level would a herbivore belong to? *
producer
primary consumer
secondary consumer
decomposer
pick one nutrient cycle (carbon, nitrogen, phosphorus, water, oxygen). explain why it is essential for life.

Explanation:

1. Producers are organisms that can make their own food through photosynthesis. Grass, oak tree and algae are plants or plant - like organisms capable of photosynthesis. A wolf is a carnivorous animal and not a producer.
2. Herbivores eat producers. Primary consumers are organisms that consume producers. So herbivores are primary consumers.
3. For the carbon cycle: Carbon is a key element in organic compounds that make up living organisms. It is involved in photosynthesis (where plants take in carbon dioxide) and respiration (where organisms release carbon dioxide). It cycles between the atmosphere, biosphere, hydrosphere and lithosphere, enabling the formation of essential biological molecules like carbohydrates, proteins, lipids and nucleic acids.

Answer:

1. C. Wolf
2. B. Primary consumer
3. The carbon cycle is essential for life because carbon is a fundamental building - block of organic molecules necessary for the structure, function and reproduction of living organisms.