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Chapter 2
Reproduction, traits and heredity, animal aadaptations and survival, change over time
24
Science
5th Grade
11/17/2009

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Term
SEXUAL REPRODUCTION
Definition
The production of a new organism from a female sex cell and a male sex cell.
Term
Asexual reproduction
Definition

 


The production of an organism using  only one parent.

 

Term

Vegetative

propagation

Definition
Asexual reproduction in plants that produce new plants from roots, leaves , or stems
Term
Instinct
Definition
An inherited behavior, one that is not learned but done automatically.
Term
Gene
Definition
A portion of a chromosone that contains chemical instructions for inherited traits.
Term
Dominant trait
Definition
The form of an inherited trait that masks the other form of the same trait.
Term
Recessive trait
Definition
The form of a  trait that is hidden or masked the hybrid generation.
Term
Pedigree
Definition
A chart used to trace the history of traits in a family
Term
Carrier
Definition
An individual who has inherited a factor for a trait but does not show the trait physically
Term
Heredity
Definition
The passing down of inherited traits from one generation to the next.
Term
Inherited traits
Definition
A characteristic that is passed from parent to offspring.
Term
Camoflauge
Definition
An adaptation in which an animal protects itself against predators by blending in with the environment.
Term
Definition

DIFFRENCE BETWEEN ABSOLUTE AGE AND RELATIVE AGE.

ABSOLUTE AGE:A ROCK'S AGE IN YEARS.

RELATIVE AGE:

Term
adaptations
Definition
any characteristic that helps an organisim survive in its environment
Term
camouflage
Definition
any coloring, shape, or pattern that allowes an organism to blend in with its environment
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