9. An experiment is described below. A student was interested in comparing sunblock lotions, which contain chemicals that protect the skin from sunburn. The student purchased three different brands of lotion at three different prices and performed an experiment to see which one best protected the skin. The lotions cost $3, $5, and $7 for an 8-ounce bottle. The sun protection factor (SPF) was 30 for all three lotions. The student applied equal amounts of each lotion next to each other on one of her arms. The three areas covered by the lotions were the same size. The student observed the three areas for color change after two hours of Sun exposure. Identify two conditions that were held constant in this experiment. There are three.β
Answers: 2
Biology, 22.06.2019 03:00
When mendel crossed a true-breeding short plant with a true-breeding tall plant all the offspring were tall. which term describes the gene for tallnes?
Answers: 1
Biology, 22.06.2019 07:20
Which best describes carbon dioxideβs path out of the body
Answers: 2
Biology, 22.06.2019 12:30
Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? a) catalysis b) metabolism c) anabolism d) dehydration e) catabolism
Answers: 1
Biology, 22.06.2019 14:30
Explain how the parts of the peripheral nervous system work with the central nervous system to produce a response to the stimulus
Answers: 1
9. An experiment is described below. A student was interested in comparing sunblock lotions, which c...
English, 22.11.2020 03:50
German, 22.11.2020 03:50
Mathematics, 22.11.2020 03:50
French, 22.11.2020 03:50
Computers and Technology, 22.11.2020 03:50
Health, 22.11.2020 03:50
Mathematics, 22.11.2020 03:50
Physics, 22.11.2020 03:50
Mathematics, 22.11.2020 03:50