Cooperative Relationships

Cooperative Relationships

Open Ended

What is a way that humans cooperate with other animals?

Open Ended

Can you think of any ways that animals work together?

Symbiotic Relationships

• Some organisms have special relationships within their community.

• Some are good for both animals

• Some are good for one animal and hurt the other,

• Some are good for one but don't impact the other.

Moray Eel and Cleaner Shrimp

• Moray Eel will seek out cleaner shrimp to keep parasites off of them.

• The cleaner shrimp eats the parasites out of the eel's mouth and eyes...

• The eel gets a good cleaning.

Clown Fish and Anemone

• The clown fish gets protection from the anemone.

• This doesn't affect the anemone at all.

Mistletoe

• Mistletoe lives on trees

• It sends its root like structures into the tree, sucking out water and nutrients from the tree to feed itself.

• If the tree cant feed itself and the mistletoe it can suffer.

Symbiosis

• A relationship between two organisms living in close contact

• Sym means together bio means life

3 Types of Symbiosis

• mutualism

• commensalism

• parasitism

Mutualism

• Mutualism is two species are in a symbiotic relationship that benefits both of the species.

• The Moray and the cleaner shrimp both benefit from their relationship.

• The cleanerfish gets food the Moray gets cleaned.

Multiple Choice

Which scenario describes a relationship of mutualism?

• A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat.

• Oxpecker birds eat parasitic ticks off the backs of zebras.

• A polar bear catches a seal for dinner.

• Birds feed off the insects that are stirred up from the grasses as cattle move through.

Commensalism

• Commensalism is a symbiotic relationship where one organism benefits, but the other is neither harmed nor benefits from the relationship.

• The clownfish is protected by the anemone, the anemone's situation does not seem to be changed.

Multiple Choice

Orchids grow on the branches of high trees to get more water and sunlight than those on the ground. The tree is unaffected by the orchid's presence. Which is true?

• Both are helped in this example.

• This is not an example of commensalism.

• The orchids are neither harmed nor helped.

• The tree is neither harmed nor helped.

Parasitism

• Parasitism is a symbiotic relationship in which one organism benefits and another is harmed.

• Mosquitos, for instance use the blood of mammels to help in reproducing.

• Thei bites can spread disease and cause uncomfortable sores on their hosts.

Multiple Select

Which scenario describes a relationship of parasitism?

• Oxpecker birds eat parasitic ticks off the backs of zebras.

• A tick attaches itself to the skin of a dog and sucks it's blood for food. .

• A wolf catches a rabbit for a meal.

• Birds feed off the insects that are stirred up from the grasses as cattle move through.

Symbiotic Relationships

• Mutualism: both organisms benefit

• Commensalism: one benefits, the other is not impacted

• parasitism: one benefits while the other is harmed.

Multiple Select

Which scenario describes a relationship of commensalism?

• A polar bear catches a seal for dinner.

• A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat.

• Birds feed off the insects that are stirred up from the grasses as cattle move through.

• Oxpecker birds eat parasitic ticks off the backs of zebras.

Poll

How do you feel about symbiosis?