Biology, 07.10.2021 14:00 terrickaimani
Students in a biology laboratory course were growing pea plants for their genetics experiments. One lab group decided that since plants need water and nutrients to grow, they would test several nutrient-containing solutions diluted by 50% in water. They ‘watered’ each of their test plants with a different solution: milk, orange juice, soup, or pure water (control). After a week, they measured how tall their plants had grown. Were any of these solutions more beneficial to the plants than plain water? the soup broth was just as good as water, since it contains ions such as sodium and chloride the orange juice was the best, since it already contains the sugars that plants would normally make themselves the milk was better than the water, since it contains all the macromolecules yes, all of them – they are all isotonic to the plant cells no, none of them - they are all hypertonic to the plant cells
Answers: 2
Biology, 21.06.2019 20:40
Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling
Answers: 3
Biology, 22.06.2019 00:00
What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !
Answers: 1
Biology, 22.06.2019 00:40
World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s
Answers: 3
Students in a biology laboratory course were growing pea plants for their genetics experiments. One...
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