Post 12: This Week in Science (Daphnia and Introduced Species)

    This week in science we went to this truck that had people that were scientists.  We got to see the little creature known as  a Daphnia.  They these little things in the water and we put Alcohol and also Nicotine.  We did that to see if there heart races or slows down.  And Lastly we got to time it to see if it changes. 

   We Learned that with 10% of Alcohol the heart starts to go faster.  And with 20% it Slows down really fast.  And also we learned that before experimenting on humans you should experiment on model organisms.  Also the Daphnia's body is strange it eats and poops in like a few seconds depending on how long their food takes to digest.  And lastly we found out that Daphnia's are not a suitable model organism for testing the effects of drugs on the cardio-vascular system.