Warm-up Day 9 Interdependency in Ecosystems

Students observed animals at a farm. A list of their observations is shown. Which student observations describe a biotic element interacting with an abiotic element?

• Observations 1 and 4

• Observations 1 and 3

• Observations 2 and 3

• Observations 2 and 4

Tags

NGSS.MS-LS2-3

During a trip to the beach, a student noticed a hermit crab. Which observations best describe how the hermit crab interacts with another biotic element in the ecosystem? Select TWO correct answers.

• The hermit crab eats grass on the shoreline.

• The hermit crab swims through the water.

• The hermit crab burrows into the soil.

• The hermit crab climbs a tree for protection from a predator.

• The hermit crab switches its shell for a larger one.

Tags

NGSS.MS-LS2-2

A student observed and recorded some activities in an aquarium. An interaction between two living parts of the environment is represented by -

• Observations 1 and 2

• Observation 3

• Observations 4 and 5

• Observation 6

A student’s model of a closed ecosystem is shown. The student plans to add land snails to the model in order to show how the snails interact with different parts of the ecosystem. What should the student add to the model so that the snails will survive?

• Fish to provide food

• Sticks to provide a place to hide

• Deep water to provide carbon dioxide

• Living plants to provide oxygen

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Nonliving parts within an ecosystem

• Biotic

• Abotic

• Interaction

• Environment

Tags

NGSS.MS-LS2-3

When living parts of an environment engage with other living or nonliving

elements

• Biotic

• Abiotic

• Interaction

• Environment

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

The area in which an organism lives

• Biotic

• Abiotic

• Interaction

• Environment

Living and once-living parts within an ecosystem

• Biotic

• Abiotic

• Interaction

• Environment

Tags

NGSS.MS-LS2-3