Question

1. develop and write and experiment what that would show whether one food is better than another at speeding an animals growth.
2. describe the difference between a scientific theory and a common theory used in a casual setting.
3. a group of scientists recorded population size in fruit flies in group a kept in a 0.5 l container and group b kept in a 1.0 l container. the graph below summarizes their findings. predict what you would expect see in the population size if a third group, group c was kept in a 2.0 l container. write your prediction and support it using information from the graph.

fruit fly population
time (days) number of flies

Explanation:

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1. Select animals: Choose a group of young, healthy animals of the same species, e.g., baby mice.
2. Divide into groups: Split them into two groups (Group A and Group B) with similar average initial weights and sizes.
3. Feed different foods: Feed Group A one food and Group B the other food. Keep all other factors (living environment, water - supply, etc.) constant.
4. Measure growth: Regularly (e.g., daily or weekly) measure and record parameters like weight, length, and overall body development of each animal in both groups.
5. Analyze data: After a set period, compare the average growth rates of the two groups to determine which food promotes faster growth.

A scientific theory is well - tested, based on a large amount of evidence, and has withstood rigorous experimentation and peer - review in the scientific community. It is a comprehensive explanation of a set of natural phenomena. A common theory in a casual setting is more like a guess or an opinion, often not based on extensive evidence or scientific methods. It may be based on personal observations or limited experience.

From the graph, we can see that as the container size increases from 0.5 L (Group A) to 1.0 L (Group B), the final population size of fruit flies increases. Assuming that the relationship between container size and fruit - fly population size is a positive correlation, if Group C is in a 2.0 L container, we would expect the population size to be larger than that of Group B. This is because a larger container likely provides more space, resources (such as food and breeding areas), and less competition for the fruit flies.

Answer:

Select young, healthy animals of the same species. Divide them into two groups. Feed each group a different food while keeping other factors constant. Regularly measure growth - related parameters and analyze the data to determine which food is better for speeding up growth.

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