5. Brenda grew tadpoles in cages in 3 ponds and at two food levels (2 g food per

Question

5. Brenda grew tadpoles in cages in 3 ponds and at two food levels (2 g food per L water and 0.2 g food per L water) within each pond. Within each combination of pond and food level (each combination is considered a treatment), she had 3 replicate cages. She began the experiment with 100 tadpoles in each cage and at the end of tic experiment she measured the body mass of each tadpole and the proportion of tadpoles surviving in each cage. What are the dependent variables? Survival, body mass What are the independent variables? (also called factors) pond, food level Now many experimental treatments did she have? _____ (hint each tadpole is reared or grown in a single treatment.) now many replicates did she have within each treatment? _______ Should Brenda make inferences from her experimental results about the growth of tadpoles that would be raised at a food density of 3.0 g food per L water? Yes/no explain briefly:

Explanation / Answer

The dependend varaible is body mass

The independend varaible is pond

There are 300 tadpoles, So she had 300 treatments

Within each experiment she had 3 replicates

No, as no results are given yet

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