An omnivore eats both plants and animals. Humans are an example of omnivores.

Herbivores only eat plants. Carnivores only eat animals. Detritivores eat decaying matter.

Organisms that eat producers are known as primary consumers. Organisms that eat primary consumers are secondary consumers, and organisms that eat secondary consumers are tertiary consumers and so on. Autotrophs are able to fix their own carbon from the air, converting it into food e.g., glucose, and need not eat other organisms. Predators are animals that eat prey animals, thus they are a type of secondary (or higher) consumer.

Biomagnification is described as the concentration of a pollutant increasing as it moves through the tropic levels of an ecosystem. For example, if a pollutant has a low concentration in a plant, that concentration will be much higher in the animal that eats that plant. This occurs because organisms do not have enzymes that can break down these chemicals. This process does not occur with minerals. 

Plants make up the bottom trophic level: the producers. This is because plants produce energy through photosynthesis. They do not have to eat other organisms to obtain energy, they make their own using carbon dioxide, water and sunlight. 

Herbivores are plant-eating organisms. They are classified in the primary consumer trophic level. An easy way to remember this is to break down the word. Herbs are types of plants, so when we see “herb” in herbivore think of plants. Carnivores eat other animals. Autotrophs and producers need not eat anything to get energy, rather, they make their own.

The latin name consists of the genus and species of the organism. These are the most specific of the taxonomic classifications. The taxonomic classifications are domain, kingdom, phylum, class, order, family, genus, and species.

Omnivores eat plants and meats. Carnivores eat meat only. Herbivores eat plants only. Detrivores eat dead organisms.

This question requires careful reading of the correct order of an ecosystem on earth. The correct order, from smallest to largest, for an ecosystem is “individual, population, community, ecosystem.” Individual organisms make up populations, which interact with other populations in communities, which in turn belong to ecosystems that have a particular environment, such as desert or rainforest.

Trophic energy levels show reduced biomass as you go up a food chain from producer, to consumer, to secondary consumer, and so on due to the loss of energy as heat. The hawks, as a secondary consumer, will have the smallest amount of proportional biomass compared to the other species.

Biological organization extends from the level of subatomic particles all the way up to the biosphere. Within the fields of molecular and cell biology, the atomic, molecular, and cellular levels of biology are most important. In the fields of physiology and anatomy, organs, organ systems, and organisms feature prominently.

Within ecology and population genetics, the higher levels of organization are most pertinent. Several organisms make up a population, which in turn makes up a community, and then an ecosystem. A group of ecosystems make up a biome, and the sum of all the biomes is a biosphere. 

Atmosphere and Earth are not considered levels of biological organization.