NATURAL SELECTION How living things evolve Natural Selection

NATURAL SELECTION How living things evolve

Natural Selection is one of the key concepts in evolution � � https: //www. youtube. com/watch? v=h. Of. RN 0 Kih OU After Darwin returned to England in 1836, he spent several years analizying the observations he had collected on his voyage. By 1844 he had developed a hypothesis that new varieties can be produced in an organism over time. He had experience in artificial selection.

Artificial Selection � Artificial selection occurs when breeders produce a new breed of animal over a period of time by selecting animals that have a certain desired traits and breeding them.

Natural Selection � � Darwin proposed that, through a process he called natural selection, members of a species that are best suited to their environment survive and reproduce at a higher rate than other members of the species. Darwin based this idea of natural selection on a few key principles. These are overproduction, variation, adaptation, and selection.

Natural Selection vs Artifical Selection � � https: //www. youtube. com/watch? v=Ehk. Yc 7 f. Hc R 0 What might occur when members of a species are more suited to survive than other members of the same species? NATURAL SELECTION http: //evolution. berkeley. edu/evosite/evo 101/IIIENatural. Selecti on. shtml

Read p 182 Key Principle Overproduction Variation Adaptation Selection Main Idea Details