E deledu plus rouge au fond des lacs La lumière visible est un ensemble de radiations
de différentes couleurs, caractérisées par leur
longueur d'onde
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

the answer is c most of the fortnite players usually buy v bucks to get the battle pass and other cosmetics but some players who are referred to as "no skins" don't   buy skins and are usually noobs.

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.