Test Ecosystem Dynamics

All organisms require _ in order to survive.

resources

A resource is any material (living or nonliving) needed by a _ to and __.

living thing; survive, grow,; reproduce

Ex: food (in the form of plants and/or animals), ___ etc.

sunlight, water, oxygen, carbon dioxide,

Organisms obtain resources from their _, the place that they live.

habitat

When there is not enough of a resource in an ecosystem, it is now considered a __.

limiting factor

It is called a limiting factor because the lack of this resource _____ a population from ____ .

prevents; growing

Ex: There is not enough grass for the ______ of rabbits to eat. The grass is now a __________ .

population; limiting factor

A population can only grow to a point where there are enough resources to them. This point is called the carrying capacity.

support; carrying capacity

If a grows above this point, organisms will begin to die due to a of resources.

population; lack

When there are not enough resources in an ___, organisms will compete to ____!

ecosystem; survive

What is the definition of Competition?

when two or more organisms, of the same or different species, need the same resource at the same time in the same place

Organisms can compete for __, __, and _

food; shelter; mates

Organisms that do not get the resources they require may need to ___ or _____

move to get them; they may die

If there are resources OR less in an area, there is less __.

more; organisms; competition

If there are less OR organisms in an area, there is competition.

resources; more; more

What is the definition of Symbiosis?

A type of relationship between two different organisms living close together.

What are the three types of Symbiotic Relationships?

Mutualism, Commensalism, and Parasitism

What is the definition of Mutualism (+, +) OR 😄😄?

A relationship between two species in which both species benefit.

What is the definition of Commensalism (+, 0) OR 😄😐?

A relationship between two species in which one species benefits and the other is neither helped nor harmed (it's unaffected)

What is the definition of Parasitism (+, -) OR 😄😫?

A relationship between two species in which one species benefits and the other is harmed, but not usually killed

The addition of removal of certain species in an ecosystem can have effects to that ___.

major; environment

Two types of species that can impact relationships in an ecosystem:

Keystone Species and Invasive Species

What is the definition of Invasive species?

a species that is not native to the environment it lives in AND causes disruption to the local ecosystem.

Invasive species have no natural , therefore their _ can grow out of control.

predators; population

They eat the food sources of , take up their , and possibly use ____ as their own source of food.

local organisms; habitat; local organisms

What are some examples of Invasive species?

Lionfish, Lantern fly, House Sparrow

What is the definition of Keystone Species?

an organism that helps hold the system together.

Without its keystone species, ecosystems would look very .

different

Some ecosystems might not be able to __ to changes if the disappeared.

adapt; keystone species

What are some examples of keystone species?

Gray wolves, otters

What is biodiversity used to describe?

the tremendous amount of variety among organisms and habitats within our biosphere.

the ability of different _ to live in _ environments

organisms; different

the ability of species, both ___ and _____, to fill different roles in the same __

similar; different; ecosystem

the _ of an ecosystem (more organism variety

means the ecosystem is more __!)

health; stable

An organism's habitat is its "___" while its niche is its ___.

address; occupation

Define Habitat

Where an organism lives. These birds all live in the same habitat.

Define Niche

An organism's role/job in the ecosystem. This can include what an organism eats, what resources it uses, and how it obtains those resources

What is a flamingo's niche?

Flamingos feed by straining mud through their bills.

What is a Duck's niche?

to feed on plants.

What is a avocet's niche?

to feed on insects.

What is a oyster catcher's niche?

to pry open shells.

What is a plover's niche?

to hunt for small insects.

These birds all have roles in the __.

different; habitat

Producers and consumers both have _ in the ecosystem.

important niches

What are the niches of Producers?

to make food that is eaten by other organisms.

What are the niches of Consumers?

to pollinate plants, helping the plants reproduce!

The various _ of different organisms on the leads to an abundance of ____!

niches; planet; biodiversity