6) A scientist measured the rate of water loss from a plant shoot using a potometer. Figure 8 shows the equipment used in the experiment. Figure
8The volume of water lost from the plant can be calculated by measuring
the distance a bubble moves along the capillary tubing. Calculate the rate
of water loss from the plant in mm3/s if the volume of water lost was 12
mm3 in 10 minutes.

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.

Which was not a reason why canals were built in florida