Exploring Ecosystems

Mason, Arjun, and Evelyn went on a field trip to a forest. They observed the ecosystem and noticed a sequence of energy flow. What is the correct order they likely observed in this typical ecosystem?

• Decomposers (like fungi) → Producers (like trees) → Primary Consumers (like deer) → Secondary Consumers (like lions)

• Producers (like trees) → Primary Consumers (like deer) → Secondary Consumers (like lions) → Decomposers (like fungi)

• Secondary Consumers (like lions) → Primary Consumers (like deer) → Producers (like trees) → Decomposers (like fungi)

• Primary Consumers (like deer) → Producers (like trees) → Secondary Consumers (like lions) → Decomposers (like fungi)

During a geography class, Michael, Charlotte, and Luna were discussing different biomes. They were trying to identify a biome characterized by low precipitation, extreme temperature changes, and sparse vegetation. Which biome were they discussing?

• Tropical Rainforest

• Savanna

• Tundra

• Desert

Arjun, Grace, and Isla are studying about ecosystems in their science class. They learned about a concept that describes the transfer of energy from one trophic level to the next. What is this concept called?

• Energy pyramid

• Energy flow

• Trophic cascade

• Biomass transfer

Oliver, Emma, and Aria are studying different factors in their local ecosystem for a school project. They are trying to identify an abiotic factor. Which of the following options they identified can be considered as an abiotic factor?

• Local plants

• Animals in their backyard

• The water in their local pond

• Fungi growing on a tree

Scarlett, Aiden, and Nora went on a field trip to a forest. They were asked to count the number of deer in a specific area. What is the term for the number of deer they counted?

• Community

• Population

• Ecosystem

• Habitat

Benjamin, Ethan, and Samuel went on a field trip. They observed a large area with similar climate, plants, and animals. Which of the following best describes what they observed?

• A community of living organisms interacting with one another

• A biome

• A single species of organism living in a particular area

• The cycling of nutrients in an aquatic environment

During a science class, Henry, Harper, and Anika were discussing about the main source of energy for most ecosystems. They came up with different options. Can you identify the correct one?

• Wind

• Water

• The Sun

• Geothermal heat

Zoe, Avery, and Arjun are studying different factors in their local ecosystem for a school project. They are trying to identify a biotic factor. Which of the following options they identified can be considered as a biotic factor?

• Temperature

• Bacteria

• Humidity

• Soil pH

Nora, Oliver, and Zoe are studying the concept of 'carrying capacity' in their environmental science class. They learned that it refers to a specific aspect of population dynamics. Can you help them understand what 'carrying capacity' refers to in the context of a forest ecosystem?

• The maximum number of animals that can migrate out of the forest

• The maximum rate at which the animal population can grow under ideal conditions

• The maximum population size of animals that the forest can sustain indefinitely

• The number of animals that can be supported in a confined space within the forest

Michael, Abigail, and Avery are studying the food chain in their biology class. They learned that when energy moves up the food chain from plants to herbivores to carnivores, what happens to it?

• It increases at each trophic level

• It remains constant throughout the food chain

• It decreases at each trophic level

• It is completely recycled at each trophic level