Ecology Unit one Part 1-3

What is an ecosystem?

• All living and nonliving things in an environment

• A collection of foxes, deer and mice

• A collection of trees

• All livings in an environment

What type of relationship does the lichen represent here? A lichen is a combination of fungus and algae that lives on the sides of trees, rocks, and other materials. The fungus provides the algae with water and minerals and the algae uses the water and minerals to make food for both organisms.

• mutualism

• commensalism

• parasitism

• competeition

Tags

NGSS.MS-LS2-2

What community interaction is described between organism A and organism B

• competition

• predation

• commensalism

• parasitism

Barnacles feed by attaching themselves to a whale's belly or back, allowing the species to then eat microorganisms as the whale swims.The whale is unaffected in this process. what type of symbiotic relationship is this

• mutualism

• commensalism

• parasitism

• competition

The relationship between a tick and a dog allows for the tick to benefit and also causes harm to the dog. This is an example of _______________

• mutualism

• commensalism

• parasitism

• competition

Within a community there are a population of wolves, foxes and rabbits. Recently hunters(humans) have moved into the area and are after the fur of the rabbits. With the predator-prey relationships that already exist, what has the inclusion of hunters caused in this community?

• revolt by the wolves and foxes against the humans

• an increased competition for resources

• an less competition between the foxes and wolves

• A hunting pack between the humans and wolves

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-1

The image shows two Hartebeest locking horns fighting for territory. Which of the following best describes this interaction?

• intraspecific competition

• Interspecific competition

• predation

• symbiosis

In this particular habitat many different populations of plants are competing for space, rain fall and soil nutrients. this is a good example of which of the following

• intraspecific competition

• interspecific competition

• mutalism

• parasitism

Review: The Harlequin toad lives in high elevations of the Costa Rica tropical Rain Forests. They are primary consumers feeding on fungi, plants and small insects. which part of this description describes the toad's habitat

• high elevations

• Costa Rica

• Tropical Rain Forest

• primary consumers

Review: Is acid rain causing a decline of frog populations? based on the questions above, what would be the independent variable in the experiment?

• population of frogs exposed to acid rain

• population of frogs not exposed to acid rain

• the number of frogs in the population after being exposed to acid rain

• the number of frogs in the population after not exposed to acid rain