3 Relationships of Organisms

The relationship between two members of a community in which one member harms another by its presence is

• parasitism

• mutualism

• commensailism

• dependency

A bee goes from flower to flower, gathering nectar. At each stop, the furry body and legs accumulate pollen from the flower, which the bee transfers as it moves. The flower needs pollen to reproduce and the bee needs nectar to eat. What kind of relationship is this?

• parasitism

• commensalism

• mutualism

• predation

Tapeworms are long, flat parasites that can live in the intestines of animals, including humans. The tapeworm feeds off the food the host animal consumes, and the host animal loses nutrition as a result. What kind of relationship is this?

• parasitism

• commensalism

• mutualism

• predation

Some small fish attach themselves to the body of a shark without harming it and feed upon its left over food. This relationship between the shark and the fish is an example of

• commensalism

• mutualism

• competition

• parasitism

The graph shows the changes in two populations of herbivores in grassy field. A possible reason for these changes is that

• all of the plant populations in this habitat decreased

• population B competed more successfully for food than population A did

• population A produced more offspring than population B did

• population A consumed the members of population B

What is an ecological niche?

• The role an organism plays in its environment

• A predator that has gone extinct

• A wetland that borders a swamp and a marsh

• A type of natural disaster

Tags

NGSS.MS-LS2-2

A deer would be ________________ factor in its ecosystem.

• an abiotic

• a biotic

A feeding relationship where one organism hunts and one is hunted.

• Commensalism
• Decomposistion
• Mutualism
• Predator-Prey

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

The organism that is hunted and eaten in a particular feeding relationship is known as:

• Predator
• Decomposer
• Prey
• Autotroph

Tags

NGSS.MS-LS2-4

A group of particular organisms that belong to the same species that live in the same habitat is known as a:

• Population
• Ecosystem
• Community
• Biome

Tags

NGSS.3-LS2-1