AIM: What are Interactions amongst Living Things

Identify interactions between organisms and related strategies.Identify harmful, beneficial, and

mutual interactions

Competition, symbiosis, Competition, symbiosis, mutualism, mutualism,

commensalism, commensalism, parasitismparasitism

Competition, symbiosis, Competition, symbiosis, mutualism, mutualism,

commensalism, commensalism, parasitismparasitism

AIM: What are Interactions amongst Living Things

What are adaptations again?

What enables a fish to What enables a fish to survive in watersurvive in water

What enables a fish to What enables a fish to survive in watersurvive in water

What is camouflage?

Why do soldiers where Why do soldiers where camouflage?camouflage?

Do animals use Do animals use camouflage?camouflage?

Why do soldiers where Why do soldiers where camouflage?camouflage?

Do animals use Do animals use camouflage?camouflage?

Symbiosis

DEFINITION:DEFINITION:

relationship between relationship between species that benefits at species that benefits at least one of the speciesleast one of the species

THREE DIFFERENT TYPES

DEFINITION:DEFINITION:

relationship between relationship between species that benefits at species that benefits at least one of the speciesleast one of the species

THREE DIFFERENT TYPES

Commensalism- a relationship in which one member benefits while the other member is unaffected. Birds and trees have this type of relationship.

Mutualism- is a relationship in which both members benefit. Butterflies and flowers have this type of relationship.

Parasitism- is a relationship in which one member benefits and the other member is harmed. Humans have this type of relationship with certain disease causing bacteria.

A remarkable 3-way mutualism appears to have evolved between an ant, a caterpillar, and an acacia in the

American southwest. The caterpillars have nectar organs which the ants drink from, and the acacia tolerates the feeding caterpillars. The ants appear to provide some

protection for both plant and caterpillar. Research of Diane Wagner, American Museum of Natural History

Southwestern Research Station

Leafy and spore-producing lichens on a branch of a tree. Lichens consist of a fungus and a an alga. Both can live in harsh environments where neither partner

could survive or reproduce alone.

Leafcutter ants carry fragments to their underground nest. The leaves will become food for fungi cultivated by

the ants. The fungi then provides food for the ants.

In the tunnels of the nest interior, members of this colony bring leaf fragments back to feed the fungus -

while soldiers guard the queen, nearly hidden at right.

SYMBIOSIS

Mutualism

commensalism

Parasitism

SYMBIOSIS

Mutualism

Both organisms benefit

“the flower and the bee”

bacteria in your small intestine

“the bird and the ox”

SYMBIOSIS

commensalism

One species benefits, the other is neither helped

not harmed.

“sharks that have small fish

swimming near their mouths”

SYMBIOSIS

Parasitism

One organism either lives in or on another organism - causing it harm!

Usually the host does not die, if it does - so does the parasite.

(Flu, Fleas, bacteria)

REVIEW VOCABULARY – AND THE AIM – AND THE OBJECTIVES

AIM: What are habitats and niches?

Identify interactions of organism and related strategies. Identify harmful, beneficial, and mutual interactions

Competition, symbiosis, Competition, symbiosis, mutualism, mutualism, commensalism, parasitismcommensalism, parasitism

Competition, symbiosis, Competition, symbiosis, mutualism, mutualism, commensalism, parasitismcommensalism, parasitism

Class Activity:

Worksheets

AIM: What are habitats and niches?

Homework:

INTERNET QUESTIONS

Paragraph

AIM: What are habitats and niches?