IN class on Wednesday we reviewed The movie that we watched on tuesday Mrs.Stien explained that The booby pushed its brother out because the mother wont be able to feed both of them or she wont have enough food so the booby pushed the brother out. she will feed them but she sacrifices her food to the baby and she will die. also the booby always hatch 2 eggs and 40% that they wont hatch thats why they hatch two so at least they get one. after we discussed about the movie we started our lab NATURAL SELECTIONS LAB.
The lab demonstrated NATURAL SELECTION by using a piece of fabric as the environment and hole punched chips as animals and we were the predators and see which type of color had the best chance to survive so we picked up The chip without look too long just one second and see how many left and this shows basic natural selection.
The lab page was 18.
In class thursday we talked about our double bubble map of Darwin and Lamarck Mrs.Stien told us the key concepts of the two. Darwin was later than Lamarck and Darwin disagreed on Lamarcks hypothesis. darwin had a theory because he had much more evidence than Lamarck while Lamarcks was A Hypothesis. darwin used natural selection to describe evolution and they both accepted that environment also influenced evolution.after our discuss we turned back our papers and we did our lab BREAKFAST FOR THE BIRDS.
this lab demonstrated how evolution worked on the birds BEAKS. we had 4 different types of beaks Plier, Forceps, Spoon, Staple remover. we had 5 station and 1 MINUTE to "eat" the food station one wich was Larvae (rice) and station 2 was Pond with small animals and plants Station 3 was seeds in an open fields station 4 was rocky ledge with freshly killed rabbits Station 5 was worms hidden in grass these environment needed all different types of beaks. one beak matched one environment and this show how birds evolve by eating as well
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