Levels of Organization/Food Chain

What are the ecological levels of organization from smallest to the largest?

• organism, population, community, ecosystem, biome, biosphere
• organism, community, population, ecosystem, biome, biosphere
• organism, population, community, biome, ecosystem, ecosphere.
• organism, community, population, biome, ecosystem, ecosphere

A collection of living organisms that belong to different populations but all live in the same area and interact with one another is a...

• Population

• Ecosystem

• Community

• Ecosphere

Tags

NGSS.MS-LS2-4

Which describes the components of a Coral Reef Ecosystem?

• The Clown fish and it's eggs.

• The organisms, water, rocks and sunlight in the Coral Reef.

• The sand and water that make up the sea floor.

• The colorful fish, barracuda, fish eggs, and other ocean animals.

The diagrams show some of the levels of biological organization. In what order are the levels in the diagrams?

• Population---community--- ecosystem

• Organism---community---population

• Organism---population---community

• Ecosystem---population---community

Cows are herbivores, which means that they eat plants. A cow would be which part of the food chain?

• decomposer
• producer
• secondary consumer
• primary consumer

Tags

NGSS.MS-LS2-3

Wolves do not have predators, because they are at the top of the food chain. They hunt, but do not get hunted. Which part of the food chain would most likely be a wolf?

• primary consumer
• tertiary consumer
• decompser
• producer

Tags

NGSS.MS-LS2-3

A student is asked to draw a food web in which the same organism is a primary consumer as well as a secondary consumer. How should the organism be represented in the food web?

• The organism must have an arrow pointing from it to a tertiary consumer and another arrow pointing from it to a decomposer.

• The organism must have an arrow pointing from it to a secondary consumer and another arrow pointing to it from the top predator.

• The organism must have an arrow pointing to it from a producer and another arrow pointing to it from a primary consumer.

• The organism must have an arrow pointing from it to a primary consumer and another arrow pointing away from it to a decomposer

An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?

• They break down dead organisms to return nutrients to the soil.
• They produce their own food for survival.
• They play a role in preventing weathering and erosion.
• They provide most of the energy to consumers.

Tags

NGSS.MS-LS2-3