In a particular population of Paramecium species, 30 Paramecia were found in 4 mL of sample pond water. At another location, 85 Paramecia were found in 40 mL of sample pond water. What is the change in density of the Paramecium species? Express your answer rounded to two decimal places.
Animal Diversity
Nematodes are commonly known as roundworms. They are free-living, very tiny organisms. They have an elongated and tubular body. These organisms have a nervous system and are mostly act as parasites to both animals and plants.
Platyhelminthes
Platyhelminthes are also known as "flatworms" because as they are dorsoventrally flattened from head to tail. They are invertebrate, soft-bodied, acoelomate, unsegmented and have bilateral symmetry.
In a particular population of Paramecium species, 30 Paramecia were found in 4 mL of sample pond water. At another location, 85 Paramecia were found in 40 mL of sample pond water.
What is the change in density of the Paramecium species?
Express your answer rounded to two decimal places.
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