2.Next, to see the effect of the nanoparticles higher up in the food chain, they exposed a group of Daphnia to the plastic nanoparticles again, and then fed them to some fish called Crucian carp.
3.He left a very detailed method for this fish soup: fresh crucian carp or carp are killed alive, put into the pot with cold water, add salt, and add a little cabbage heart to cook at the same time.