Question

1. consider the three types of plants used in this experiment. what reasons might explain why the results turned out as they did?

b. study the bar graph to the right and answer the following questions:

1. do fish grow to a larger weight in pond water or in tap water?
2. which grow larger, the males or the females?
3. what is the average weight of female fish when grown in pond water?
4. what is the average weight of male fish when grown in tap water?
5. why do you suppose the fish grow the best in pond water?

Explanation:

B.1

From the bar graph, the average weight of fish (both male and female) in pond water is higher than in tap water. So fish grow to a larger weight in pond water.

Comparing the bars for male and female fish (in both pond and tap water), female fish bars are taller. So females grow larger.

The black bar (female fish) for pond water reaches 6 on the y - axis (average weight in grams). So the average weight is 6 g.

Answer:

Pond water

B.2