Heredity ReviewGenetics

What is a trait?Trait: characteristics that determine how an organism looks, acts, or functions.

List as many traits as you can!SizeSkin colorHair colorEye color/shapeWidow’s peakStraight hair or curly

hairMild mannered/wild

Hitch hiker’s thumbCleft chindimplesTaste PTCEarlobes Roll tongueRight/left handedHow you cross your

hands

Tell your neighbor EVERYTHING You remember about traits.What are some of your traits?

What is an environment?

Environment: the surroundings in which an organism lives.

What are some organisms that may live in these environments?Forest: trees, algae, moss, flowers, lilypadsElk, deer, squirrels, chipmunks, bears,

wolves, birdsOcean: coral, sharks, stingrays, anemone, sea

turtles,Fish, dolphin, algae, starfish, octopusDesertTortoise, scorpion, lizards, snakes

What is a learned behavior?Learned behavior: an action that is learned through trial and error or is brought about by the environment.

List as many learned behaviors as you can!(at least 2 animal and 2 plant behaviors)WalkRunPlay pianoCartwheelTalkSingUse utensilsWrite ReadRide a bike

Tie shoesTypeAnimals: Learn tricksBark to come Inside.Plant: grow Up a lattice.Turn to sun

Instinct vs Learned BehaviorDiscuss with your neighbor ways to remember the difference.

What is an INSTINCT?Instinct: behaviors that are inherited from the parent organism.

List as many instincts as you can!EatSleepLaughBlinkCryHearDogs sense of smellCats chaseFish swimSmileSmell Bark at

Strange soundsBreatheShape of leafBaby turtles go To oceanscream shape of flower

What is a specialized structure?Specialized structure: a body part unique to a species for survival in its environment.

For an extra point(s), name a specialized structure and the function.

What is a parent organism?Parent organism: producer of offspring.

Give the definition for speciesSpecies: a certain group of plants or animals that can only reproduce among themselves.

For an extra point give examples.DogsCatsRabbits

What is a variation?Variation: differences in

appearances of an inherited trait among the members of a group (species)

Name an organism that does not resemble parents in beginning.FishFrogsPlantsFlowersAmphibiansInsects

ExplainWhy do some organisms look like the parent and some do not, in the beginning?