A tapeworm and a cat have this type of relationship.

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  

Which symbols best describe parasitism?

Red-billed oxpeckers are birds that often feed on parasites that infest impala.  This is an example of _______.

A relationship between two organisms in which both organisms benefit. 

When a mosquito bites you, you are the __________ and the mosquito is the  ____________.

 The stork uses it saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is accessible to some bees for food and egg laying. The relationship neither harms nor benefits the stork.

Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 

Remoras attach themselves to a shark’s body. They then travel with the shark and feed on the leftover food scraps from the shark’s meals. The relationship neither harms nor benefits the shark. 

Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both species benefit. 

 Hermit crabs live in shells made and then abandoned by snails. This relationship neither helps nor harms the snails.

Honey guide birds alert and direct badgers to bee hives. The badgers then expose the hives and feed on the honey first. Next the honey guide birds eat. Both species benefit. 

A cuckoo may lay its eggs in a warbler’s nest. The cuckoo’s young will knock the warbler’s eggs out of a nest and the warbler will raise the cuckoo’s young.

As bison walk through grass, insects become active and are seen and eaten by cowbirds. The relationship neither harms nor benefits the bison.

Heartworms develop inside a dog’s heart. The worms cause health problems and may result in death. 

Orchids grow inside a bromeliad plant. The orchid obtains water and nutrients from the bromeliad, but does not help or harm it.

A wasp lays its eggs on a caterpillar. When the wasp eggs hatch, the larva will eat the caterpillar and kill it. 

Two male Giraffes are fighting over the last green leaf of a tree that is dying.  

A hawk flies down and scopes of a snake, trying to slither into the ground

Any thing or organism that regulates the size of a population is known as __________.

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?

When a population grows past the ecosystem's carrying capacity, what happens to the population?

A symbiotic relationship that involves species having to fight for something they both need or want

A symbiotic relationship between a predator and prey

A fox chasing a rabbit to eat it is

What are the biotic factors in this image?

In the energy pyramid below, which organism has the least amount of energy available?

In the energy pyramid here, which organisms have the most energy available?

What does a food web represent?

Which combination of symbols best describe mutualism?

The picture shows what type of succession?

The picture shows what type of succession?

What type of succession is shown going from figure A to figure B?

After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?

What is a group of organisms of the same species living in the same area at the same time called?

Which type of organisms gets its food energy by decomposing dead animals and plants?

Which type of organism would be considered a decomposer?

A ________ is made up of the community and all of the non-living factors in the environment.

The biome with the greatest amount of biodiversity is the