Question 4 : Comparer la surface des taches rouges chez les différents mâles étudiés et proposer une explication aux différences constatées. /2pts
Question 5 : Relier la capacités de perception du « rouge » par les femelles en fonction de la longueur d'onde du
milieu de vie ./4pts
Question 6 Conclusion: Expliquer comment la difficulté de réception du signal de communication ( ici les taches
rouges) peut contribuer à la spéciation aboutissant à la formation de deux nouvelles espèces /5pts

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

Which direction does the energy flow in this energy pyramid ?

Research question: why are the carrots that grew on the left side of the garden larger than the carrots that grew on the right side of the garden? which hypothesis is based on this research question? a comparison of people with gardens to people without gardens will show who is likely to live longer. b. carrots are thought to be good for your eyesight and should be eaten regularly. c. carrots that are provided lots of sunlight grow to a larger size than carrots grown in the shade. d. eating fresh vegetables every day is a healthy thing to do.