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Bienvenidos

Mrs. Mendoza would like to welcome the Middle School Students back to Lial.  We are going to begin the trimester with a review of conversational Spanish and the practice of everyday common nouns and various forms of verb usage.  In addition, she would like to report the purchase of new text books that will keep our students on track, and prepare them for high school Spanish.  Mrs. Mendoza is looking forward to a great year!

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Types of natural selection

Directional: When natural selection favors a single trait.

Disruptive selection: When the varried trait is favored (for example; when the birds beak is longer than the others through a mutation so it is better adapted to getting food.)

Stabilizing selection: Normal traits are favored and abnormal traits are reduced or eliminated.