Jim is investigating the effect of the amount of salt in water on the growth of sunflower plants. He plants three sunflowers in three identical pots filled with the same type of soil. He places the pots in a sunny location. He mixes 500 milliliters (mL) of water and 15 grams (g) of salt and uses it to water one sunflower plant twice a week. He mixes 200 mL of water and 10 g of salt and uses it to water another sunflower plant twice a week. He mixes 100 mL of water and 2 g of salt and uses it to water the third sunflower plant twice a week. He measures the height of the sunflower plants each week. At the end of one month, Jim's sunflower plants are the same height. He concludes that the amount of salt in the water does not affect the growth of sunflower plants. Was Jim's experiment well-designed?
Question 1 options:
No; he changed the amount of salt he used for each plant.
No; he changed the amount of water he applied to each plant.
Yes; he observed and measured the plants for one month.
Yes; he had three trials.
Answers: 1
Biology, 22.06.2019 06:20
What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has
Answers: 2
Biology, 22.06.2019 11:00
In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds? first generation y y y yy yy y yy yy second generation y y y yy yy y yy yy there is a % chance that the offspring will have green seeds.
Answers: 2
Biology, 22.06.2019 21:00
Both carbohydrates and fats are used as fuel in cells. true or false
Answers: 1
Jim is investigating the effect of the amount of salt in water on the growth of sunflower plants. He...
Mathematics, 02.11.2020 23:00
Mathematics, 02.11.2020 23:00
English, 02.11.2020 23:00
Mathematics, 02.11.2020 23:00
Mathematics, 02.11.2020 23:00
History, 02.11.2020 23:00
English, 02.11.2020 23:00
History, 02.11.2020 23:00