3 rd law : nature knows best

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3 RD LAW: NATURE KNOWS BEST nature shows what works because it has been successful over a long time

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3 rd Law : Nature knows best. nature shows what works because it has been successful over a long time. Nature knows best: How the natural world is inspiring new innovations. - PowerPoint PPT Presentation

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3RD LAW: NATURE KNOWS BEST

nature shows what works because it has

been successful over a long time

Nature knows best: How the natural world is inspiring new innovations

• When we look at the world around us, we see what has survived the test of time. In other words, nature doesn't just show us results - it shows us the most optimal ideas available.

• As a result, scientists are creating more products that are inspired by nature.

The BlackBerry phone was inspired by a butterfly's

wing.

Nature-inspired designs

Bio-inspiration, also known as biomimicry, is a discipline that studies and learns from nature's best ideas to generate breakthrough products and technologies.

Solar Leaf

A Speedo swimsuit line

inspired by shark's skin

Nature knows best: How the natural world is inspiring new innovations

• Go to the Following Website for Examples: http://www.biotrue.com/world.html

http://brainz.org/15-coolest-cases-biomimicry/

A new car design

inspired by a boxfish

3rd Law: Nature knows bestRead your article and write examples forLaw #3:

Mothers milk vs. milk formula http://video.answers.com/formula-vs-breast-milk-for-infants-169789702

Real food vs. vitamins http://www.youtube.com/watch?v=Cti0dfsSEyY&feature=related

Pesticides vs. natural enemies: http://www.youtube.com/watch?v=UXvmrD99mMw

Wild (or prescribed) fires vs. stopping fireshttp://www.youtube.com/watch?v=1hQvxq5XC-E

How does the availability of resources affect the number

of deer over time?

Oh Deer Game

1) Populations will increase as much as they can.

-For instance, as long as pike have enough food (i.e. yellow perch) to eat in Lake Winnipeg they will continue to grow, reproduce and add to their population.

2) But, populations will not grow forever due to limiting factors (Some form of resistance from the environment will stop the population’s growth)

-For example, the lack of food for pike is a form of resistance or a limiting factor. If pike do not have enough food to eat their population will begin to decrease.

CARRYING CAPACITY = #

the population size that the environment can support indefinitely, given the limiting factors

http://www.gov.mb.ca/conservation/sustain/popdyn.pdf

These changes in population can be graphed. The first two graphs begin in the same manner.

-Point A represents the lag phase. There are very few organisms in the beginning so the reproduction rate is low. The population grows very slowly.

-Then, as the young grow up and begin to reproduce, the population enters the acceleration phase at point B.

-Soon the population begins to grow very quickly in the exponential phase at point C.

-Exponential growth cannot occur for long due to environmental resistance, which is represented by points D,E, and F.

EARTH IS A CLOSED SYSTEM

LIMITING FACTORS:

factors that control an organisms growth or size of a populationEx: food, water, living space, disease, predators

Source:http://www.globalchange.umich.edu/globalchange2/current/lectures/human_pop/human_pop.html

http://www.shodor.org/interactivate/activities/RabbitsAndWolves/

Source:http://www.globalchange.umich.edu/globalchange2/current/lectures/human_pop/human_pop.html

What has happened to the “carrying capacity” for humans?

Why?