HeredityHeredity

Trait-Trait- characteristic of a characteristic of a living organism.living organism.

example: 1) tallexample: 1) tall

2) brown hair2) brown hair

3) love menudo3) love menudo

Two Types of TraitsTwo Types of Traits

1) Inherited 1) Inherited traitstraits

2) Learned 2) Learned traits traits (behaviors)(behaviors)

Inherited TraitsInherited Traits Traits that are passed from Traits that are passed from

parents to children.parents to children.

examples: shortexamples: short

blue eyes blue eyes

Learned Traits Learned Traits (Behaviors)(Behaviors)

Traits you develop because Traits you develop because of your environment.of your environment.

example: you love menudo example: you love menudo becausebecause

dad loves menudo dad loves menudo

DNA BasicsDNA Basics

DNA is DNA is geneticgenetic material responsible material responsible for an organism’s for an organism’s hairhair color, color, bodybody structure, enzyme production etc.structure, enzyme production etc.

DNA BasicsDNA Basics

DNA is located in the DNA is located in the nucleus nucleus of a of a cell.cell. For the information in DNA to For the information in DNA to leaveleave the the

nucleusnucleus, it must be turned into , it must be turned into mRNAmRNA. . This process is called This process is called transcriptiontranscription..

When the cell When the cell dividesdivides, the DNA is , the DNA is copiedcopied in the process of in the process of replicationreplication. . This is done so that the two new cells This is done so that the two new cells have the have the samesame genetic information. genetic information.

EcologyEcology

Species- interbreeding plants or animals Species- interbreeding plants or animals that produce offspring.that produce offspring.

Populations- plants and animals of a Populations- plants and animals of a particular species.particular species.

Producer- organism that make their own Producer- organism that make their own food.food.

Consumer- organism that obtains food Consumer- organism that obtains food from another source.from another source.

Decomposer- breaks down dead or Decomposer- breaks down dead or decaying matter.decaying matter.

SpeciesSpecies

Endangered- Endangered- species that are in species that are in danger of dying out.danger of dying out.

Extinction- species Extinction- species that no longer that no longer exists.exists.

The Sea Otter is an The Sea Otter is an endangered species.endangered species.

MechanismsMechanisms

Feedback Feedback Mechanism- Mechanism- adjustment to an adjustment to an organism’s system organism’s system that allows it to that allows it to maintain equilibrium.maintain equilibrium.

Turgor Pressure- Turgor Pressure- balance of fluids in a balance of fluids in a plant that makes it plant that makes it rigid.rigid. Ex: celeryEx: celery