Science and Technology I Mid-Year Exam 2012 Creature Feature Review.
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Transcript of Science and Technology I Mid-Year Exam 2012 Creature Feature Review.
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Science and Technology IMid-Year Exam 2012
Creature Feature Review
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LIVING ORGANISMS
Something is considered living only if it has ALL of these characteristics:
Made of cellsReproduces
Grows and developsAdapts to its environmentResponds to stimuli (touch, sound, light, etc)Exchanges with its environment (substances go in and out)Needs and uses energy
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TAXONOMY• Taxonomy is the science of classifying living
organisms.
• An organism’s scientific name is the genus and the species together.
• The name is written in Latin.
Canis lupus
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CLASSIFICATIONLiving things are classified using these
categories:Kingdom
Phylum
Class
Order
Family
Genus
Species
King Philip Came Over For Good Spaghetti
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POPULATION
A population is a group of
individuals living in the
same area.
That area could be as big
as the entire planet, or as
small as your backyard.
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HABITAT
An animal’s habitat is theplace where the animallives.
The habitat includes thecountry (or geographiclocation), the climate andthe type of shelter
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ECOLOGICAL NICHE
Where an animal lives, what it eats, and what
it does all day is called the animal’s ecological
niche.
All animals need some type of food in order to
survive.
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ECOLOGICAL NICHEA predator is an animal who hunts and kills
other animals to eat them.
The word prey is given to the animal that is
being hunted.
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FOOD CHAINS• A food chain shows a flow of energy
from one living organism to another.
• A food web is a connection of food chains.
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• A producer makes its own food.
• A consumer needs to eat another living organism to get food.
• There are three types of consumers:Herbivores eat only plants
Carnivores eat only meat
Omnivores eat both plants and meat.
FOOD CHAINS
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ADAPTATIONS
Physical Adaptation: Something about
the animal’s body that helps it to survive
in its habitat (teeth, fur colour, body
structure).
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ADAPTATIONS
Behavioural Adaptation: The way theanimal acts or the sounds that it makes thathelp it to survive in its habitat.
Each adaptation has a specific function.
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REPRODUCTION
• The way a species reproduces is a behavioural adaptation.
• Each species reproduces in a way that gives their offspring the biggest chance to survive.
• Reproduction is the most important thing for a species to do.
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ASEXUAL REPRODUCTION• Asexual reproduction is when an animal
makes a clone (exact copy) of itself.
• Only one living organism
is needed.
• Some animals are capable of asexual reproduction.
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ASEXUAL REPRODUCTIONTypes of asexual reproduction in the animal kingdom:
Binary Fission: the animal splits in two.Example: sea anemone
Fragmentation: the animal re-grows a lost body partExample: starfish
Budding: a new organism grows out of the original organism.
Example: hydra
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SEXUAL REPRODUCTION• Requires both a male and female of the
same family.
• Most animals reproduce sexually.
• The female sex cell is called an egg.The male sex cell is called a sperm.
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SEXUAL REPRODUCTION• Requires both a male and female of the
same family.
• Most animals reproduce sexually.
• The female sex cell is called an egg.The male sex cell is called a sperm.
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FERTILIZATION• External fertilization: the male does not
deposit his semen directly into the female.Example: most aquatic animals (fish)
• Internal fertilization: the male deposits his semen directly into the female.
Example: most land animals (humans)
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FORMS OF BIRTHING• Viviparous: animals giving birth to live young.
Example: mammals, including humans
• Oviparous: animals who lay eggs.Example: birds (chickens, penguins, etc)
• Ovoviviparous: animals whose eggs hatch inside the mother, then they have a live birth.
Example: sharks, some snakes
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ANIMAL CELLS
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CREATURE CREATION
F
F
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CREATURE CREATION
When we pulled up on the thread, the spool of thread turned which twisted up the elastics, creating potential energy.
When we released the thread, the elastics untwisted and the creature moved forward, creating kinetic energy.