Biology, 18.07.2019 01:30 AK3892

Treatment bacterial cultures (#/plate) warm water 24 hand sanitizer 28 soap a 12 soap b 13 in a recent experiment, anti-bacterial hand sanitizer was compared to hand soap. students washed their hands using the sanitizer or soap and warm water for two minutes; then they dried their hands with a paper towel. the standard of comparison was rubbing hands vigorously for 2 minutes in warm water, without any soap or sanitizer, and then drying with a paper towel. the sanitizer advertisement claimed to kill bacteria more effectively than any soap. after washing, hands were swabbed and then the swab applied to a culture plate and incubated. finally, the bacterial cultures were counted and recorded in the data table. students concluded that the hand sanitizer was most effective in killing bacteria. how would you respond to the students' conclusion?

Answers: 1

Show answers

Another question on Biology

Biology, 21.06.2019 23:00

What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid

Answers: 3

Answer

Biology, 22.06.2019 06:00

Im inn a ! what"s the answer which of the following is one way creativity can scientists? by ensuring they follow the scientific method by increasing the amount of time it takes to complete scientific experiments by making sure they only try things that have already been proven by leading them to ask more questions about the natural world

Answers: 1

Answer

Biology, 22.06.2019 11:30

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?

Answers: 1

Answer

Biology, 22.06.2019 12:30

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water

Answers: 3

Answer

You know the right answer?

Treatment bacterial cultures (#/plate) warm water 24 hand sanitizer 28 soap a 12 soap b 13 in a rece...

Questions