Quiz

15.- Natural selection and the owl butterfly

Gelöschter Nutzer 5 Fragen Aktualisiert am 7 Sep 2016

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1Are these eye-looking shapes a result of a random process or a leaded process?
1. ALeaded process
2. BRandom process
3. CNone
2A concentration of pigment can decrease the frequency of being killed, Why?
1. AThe pigment has a bad flavor
2. BThe concentration of pigment scares to predators
3. CThey cannot be recognize by predators
3All kind of strategies for surviving are used ultimately for:
1. AReproduction
2. BGetting resources
3. CLiving more time
4New traits result from changes in our:
1. AProteins
2. BEnzymes
3. CDna
5When we get beyond our reproductive years, the rate of diseases increases exponentially, Why?
1. AWe are no longer useful for reproduction
2. BOur immune system decreases its activity
3. CBecause we are no longer being selected for

Beschreibung: https://www.khanacademy.org/science/biology/her/evolution-and-natural-selection/v/natural-selection-and-the-owl-butterfly
Autor: Gelöschter Nutzer
Sprache: English
Aufrufe: 20
Verlauf: Erstellt am 6 Sep 2016 · aktualisiert am 7 Sep 2016
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