Presentation on theme: "Interactions Among Living Things"— Presentation transcript:
1 Interactions Among Living Things The trap jaw ant closes its mouth the fastest. It closes its mouth in 0.13 milliseconds at speeds of 35 to 64 meters per second! The force created when its jaw snaps shut helps the ant escape danger by either jumping up to 8.3 centimeters high or 39.6 cm sideways.How does the trap-jaw ant’s adaptation help it avoid becoming the prey of another organism?What are some adaptations that other predators have to capture prey?
2 AdaptationsBehaviors and physical characteristics that allow organisms to live successfully in their environment
3 Example of adaptations Arctic hare: fur changes from gray to white in winter
4 Niche The role of an organism in its habitat What it eats, how it gets food, and what eats itYour turn…3. Describe the niche of a squirrel.4. What adaptations might a squirrel have that make it able to live in its environment?
5 Interactions Among Living Things Competition, Predation, Symbiosis
6 CompetitionIf two species occupy the same niche, one of the species might eventually die off because of competition. Competition: the struggle between organisms to survive as they attempt to use the same limited resources
7 PredationInteraction in which one organism kills another for food or nutrients Predator: the organism that does the killing Prey: the organism that is killed Your turn… 5. Imagine an ideal predator to prey upon a porcupine. Draw or describe your predator and label its adaptations.
8 Predator Adaptations Cheetah: runs fast for short time Owls: can hunt at night
10 Stopping to think…6. Two main ways in which organisms interact are ____________ and ________________. 7. Give an example of competition. 8. Owls often prey on mice. What adaptations do you think mice have that help them avoid becoming prey?
11 SymbiosisAny relationship in which two species live closely together and at least one benefits3 kinds are mutualism, commensalism, parasitism
12 Mutualism Both species benefit Examples: An oxpecker rides and snacks aboard an impala. The oxpecker eats ticks living on the impala’s ears.Your turn…9. How does the oxpecker benefit?10. How does the impala benefit?11. Explain how the relationship between a hummingbird and flower is mutualism?
13 CommensalismOne species benefits and the other is neither helped nor harmedA bird builds a nest in a tree. The bird gets a place to live while the tree is unharmed.This is not very common in nature.
14 ParasitismA relationship that involves one organism living with, on, or inside another organism and harms itParasite: the organism that benefitsHost: organism that it lives on or inExample: fleas on a dog