Match the terms to their definition. 1. backstroke a stroke originating from the breast during which both arms are used in parallel motion to push water beneath the body 2. breaststroke a stroke meant to show the strength and endurance of the swimmer. Both arms work in unison as they swing over the shoulders making violent contact with the water. The circular motion brings them back around and over once again 3. butterfly stroke performed while on the back 4. freestyle the ability of a swimmer to reduce drag in the water 5. streamline a stroke in which the arms take turns pulling and pushing water beneath the body. The feet and legs are a vital part of this stroke as they must prove constant propulsion

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance

Researchers conducted an experiment to identify the effects of three different hand sanitizers on the growth of bacteria. the researchers grew one type of bacteria in twenty-four identical covered petri dishes. then, they opened eighteen petri dishes and applied the three hand sanitizers to six petri dishes each. they left the remaining six petri dishes closed as a control group. when the researchers measured the growth of bacteria two days later, the six dishes that had no hand sanitizer showed the least amount of bacterial growth. the researchers concluded that not using any hand sanitizer would lead to the least bacterial growth. which statement best explains why the researchers’ conclusion was not justified? the experiment tested too many variables. the control group was not treated the same as the experimental group. the sample size of twenty-four petri dishes is not large enough. the single type of bacteria is not adequate to make any conclusions.