7.5 -2 Organism Interactions in Ecosystems

Which ecosystem would be least affected by a severe drought lasting five years straight?

• Grassland

• Rainforest

• Desert

• All ecosystems would be affected equally.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Use the food web to answer the following question: What could be the cause of a decrease in the population of bass?

(See Attached Diagram)

• An increase in the snail population

• An increase in the snapper turtle population

• An increase in the population of sunfish

• An increase in the minnow population

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Biotic

• Living or produced by living things

• A group of interacting individuals of the same species located in the same area

• A single, self-contained living thing

• Multiple systems working together to accomplish various tasks

Population

• Relationships between an organism or population and abiotic factors

• How all of the living and nonliving things in an area interact

• A group of interacting individuals of the same species located in the same area

• Not living or produced by living things

Tags

NGSS.MS-LS4-4

How all of the living and nonliving things in an area interact

• Abiotic

• Biotic

• Organism

• Ecosystem

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What abiotic factors influence the relationships of organisms in ecosystems?

• Sunlight, rainfall, and plant growth

• Sunlight, rainfall, and invasive species

• Sunlight, weather, and human interaction

• Sunlight, weather, and soil composition

Not living or produced by living things

• Organism

• Ecosystem

• Abiotic

• Interdependent interactions

Tags

NGSS.MS-ESS2-4

Which is NOT a biotic factor that influences the relationships of organisms in ecosystems?

• Competition among predators

• A disease caused by bacteria

• Invasive species

• Weather

In this food web, what would happen if the zebra population declined due to a disease?

(See Attached Diagram)

• The grass population would decrease.

• The giraffe population would decrease.

• Baboons would have a food shortage.

• There would be more competition among the lions, hyenas, and cheetahs.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Organism

• How all of the living and nonliving things in an area interact

• A single, self-contained living thing

• Living or produced by living things

• Relationships between an organism or population and abiotic factors

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-2