Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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If you designed an experiment to determine how temperature and the species composition of seeds affect the growth and reproduction of seed-eating birds, what would be the independent and dependent variables?
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- Squirrels can be pests at bird feeders, stealing seeds away from the intended guests. The graph below shows the results of an experiment testing a new product "Squirrel Away." On Day 1, "Squirrel-Away" was sprayed near one bird feeder. An area around a second bird feeder in a different area was NOT sprayed with "Squirrel Away." Both bird feeders contained the same seeds. The Effect of "Squirrel Away" on the Number of Squirrles at Two Bird Feeders 10 Without Squirrel Away WITH Squirrel-Away What was the independent variable in the experiment above? Average number of squirrels at the bird feeder per day Average number of birds at the bird feeder per day O Presence or absence of Squirrel Away Distance from the bird feeder that Squirrel Away was sprayed The type of seeds added to the bird feeder 9, 4. 2. at the Bird Feeder Per Day Average Number of Squirrelsarrow_forwardFor each hypothesis, identify the independent and dependent variable. Also, decide on an appropriate control group and form of data. I. Red light will cause the rate of transpiration to increase in pea plants. a. Independent variable? | b. Dependent variable? c. Control group? d. Quantitative or Qualitative data? 2. If oxygen levels are lowered in a lake, then the number of fish will decrease. a. Independent variable? b. Dependent variable? c. Control group? d. Quantitative or Qualitative data? 3. If paramecium are exposed to green light, then they will move towards the green light. a. Independent variable? b. Dependent variable? c. Control group? d. Quantitative or Qualitative data? 4. If a 50% sugar solution is present, then E. coli will reproduce at a faster rate. a. Independent variable? b. Dependent variable? c. Control group? d. Quantitative or Qualitative data? 5. If liver cells are exposed to a 70% salt solution, then the liver cells will burst. a. Independent variable? b.…arrow_forwardThere are two pots of honey (2 patches of habitat). In one pot there is 3 pounds of honey, and in the other there is 7 pounds of honey. A total of 20 bees arrive to eat honey. How many should reed from the pot with 7 pounds of honey if the bees select pots to feed from according to an "ideal free distribution"?arrow_forward
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