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Friday 28 August 2020

zebrafish

 Zebrafish text: https://drive.google.com/file/d/1AfZGT3Fw8xj7Mh_A0OxjRzK_qOIYHrko/view


New words: .

  • Anatomy- study of the body.

  • Post-fertilization  - after the boy part and girl part come together to make a baby (when the cells combine)

  • Himalayas - mountain range that separates China and India

  • Embryo - a group of cells that turn into a baby or egg

  • Genetic - relating to your DNA

  • Himalayas - A country that has a lot of Mountains

  • Ganges  - a long river in India

  • Organs - body parts

  • Juvenile - child/teenager

  •   Sections - slices  

  • Stained with dyes - putting different coloured liquids onto it so you can see different parts 

  • Coronal -  cutting in half vertically E.g. separating the front and the back 

  • Transverse -   cutting in half horizontally, E.g. cutting the head off the body

  •  Sagittal - cutting in half  vertically - E.g. cutting the left side away from the right side.


Main ideas in our own words:

Davlyn - The zebrafish lives in india rivers. Scientists like studying zebrafish because they don’t take that long to hatch or take long to grow up but with humans we take long to grow up, they also like to study them because the zebrafish are transparent so the scientist see inside it. The zebrafish eggs are called embryos; the egg has three layers: the single cell, the yolk and the protective membrane. It takes 2 to 3 days for the egg to hatch and it’s lifespan is 2 to 7 years. To see the inside of the zebrafish they cut the fish to see what is inside of the zebrafish, they cut the zebrafish in 3 different ways, Coronal means cutting in half vertically E.g. separating the front and the back, Transverse means cutting in half horizontally E.g. cutting the head off the body, Sagittal means cutting in half and vertically E.g. cutting the left side away from the right side. Different types of dye to see different body parts like the eyes then the scientists takes pictures.

This is a 3 day old fish, cut in the coronal way. The top part looks like it is the brain and the bottom looks like that is going to be the tail.

this a three day old transverse cut zebrafish. The center part will become the brain the and the two holes on the side will become the eyes.


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