https://padlet.com/mandyhewitt29/8kywz0fexw4l Made with big dreams en-us 2018-05-08 19:08:14 UTC 2026-01-20 08:32:40 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Send.png mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259062203 What's the deal?]]> 2018-05-08 19:14:27 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259062203 mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259063059 Microevolution is a change in the frequency of a gene in a population.]]> 2018-05-08 19:16:42 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259063059 mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259063743 Macroevolution is evolution (change) on a large scale, like the radiation of the dinosaurs into many species from a few common ancestors]]> 2018-05-08 19:18:21 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259063743 mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259065077 Microevolution happens on a small scale, in a single population. An example of this is how species can adapt resistance to pesticides in only a generation or two. See the picture below. ]]> 2018-05-08 19:22:08 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259065077 mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259090308 Microevolution can occur when traits are selected for in the population. In the pesticide resistance example, a gene for pesticide resistance can be selected for and quickly change the frequency of the alleles for that gene. It can also be caused by mutation. A mutation may make some bugs more resistant to the pesticide. This new (or old) mutation can then be passed to the next generation.]]> 2018-05-08 20:54:02 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259090308 mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259371861 Variation, Inheritance, Selection and Time
Variance means there must be variablilty in a trait (color, size etc) which can come about from mutation. The trait must be heritable by the next generation, there must be selective pressure for or against certain traits and time is needed for evolution (major changes) to occur. ]]> 2018-05-09 17:03:47 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259371861 mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259374613 Changes to DNA that can be passed to the next generation. Can be harmful, helpful or have no effect at all. ]]> 2018-05-09 17:10:02 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259374613 mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259376744 The process by which evolution occurs. Organisms which are better adapted to their environment survive better and produce more offspring passing those traits on to the next generation.]]> 2018-05-09 17:14:24 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259376744 mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259378135 Organisms evolve similar characteristics because of their environment. ]]> 2018-05-09 17:17:36 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259378135 mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259379302 Organisms that are not alike (do not share a recent common ancestor) become more alike. ]]> 2018-05-09 17:19:58 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259379302 mandyhewitt29 https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259711887 2018-05-10 17:17:43 UTC https://padlet.com/mandyhewitt29/8kywz0fexw4l/wish/259711887