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Showing posts with label Bio. Show all posts
Showing posts with label Bio. Show all posts

Friday, 3 March 2023

Human Evolution

 In Biology, we are looking at Human Evolution. The task here is to read any article about human evolution and write a 5-6 sentence summary about it. This is the article I'm using humanorigins.si.edu. 

Human evolution is the lengthy process of change by which humans originated from our ape-like ancestors. Humans are primates and share a common ancestor with other great apes such as chimpanzees and gorillas. Through the evolutionary process, our ancestors gained, the ability to be able to walk bipedally (Walk on two legs), a larger and more complex brain, the ability to grip and manipulate objects and tools, and the capacity for language. Most scientists recognize 15-20 different species of early humans. However, they do not agree on which ones are related or which ones just died out. Early humans first migrated out of Africa into Asia probably between 2 million and 1.8 million years ago and continued to migrate around the world, moving to Europe between 1.5 million and 1 million years ago. 

That is my summary of the section of the article about Human Evolution. The rest of the article talks about Paleoanthropology and what it is, and then the process of evolution in general.  

Thursday, 19 March 2020

KiwiFruit DNA Extraction

Yesterday in science, we extracted DNA from Kiwifruit. Here is the post about it.

KIWIFRUIT DNA EXTRACTION!!!

Aim: Extract DNA from Kiwifruit. 

Materials: half a Kiwifruit, Mortar and Pestle, two squirts of Detergent, Snaplock baggy, cloth, pinch of Salt, Ethanol, test tube 

Method: Scoop the kiwi into the Mortar and Pestle, and smush it. Add the Detergent and mix. Pour into the cloth and squeeze into the the snaplock baggy. Add a pinch of salt and mix again (After closing it of course) Let it sit for a couple of minutes. Pour into a test tube, and pour in the ethanol. There will be a globy thing that floats to the top of the kiwifruit juice, that is the DNA. 

Results: The globly thing on top. here is a picture


 Have random ones that have nothing to do with this.