Figure 4From: Impact of heterophylly on the sensitivity of Myriophyllum aquaticum biotestsHead whorl and three pseudoreplicates. (A) Head whorl in 50 g of artificial sediment in a 40-mL beaker (test organism with no submerged adaptation). (B) Three pseudoreplicates in one 2,000-mL beaker with 1,500-mL medium (test organisms with 28-day submerged adaptation time).Back to article page