Julia designed an experiment to find out if microwaving apple seeds keeps the seeds from sprouting.

Question

First, Julia separated 24 apple seeds into four groups. Next, she set aside the first group to use as a control. Then, she microwaved the second, third, and fourth groups for different amounts of time.

If Julia's experiment showed that fewer seeds sprouted as microwave time increased, which table would best show her results

table A
group number
1
2
3
4
microwave time (seconds)
0
30
60
120
number germinated
1
0
5
3

Table b
group number
1
2
3
4
microwave time (seconds)
0
30
60
120
number germinated
3
5
0
1

Table c
group number
1
2
3
4
microwave time (seconds)
0
30
60
120
number germinated
0
1
3
5

Table d
group number
1
2
3
4
microwave time (seconds)
0
30
60
120
number germinated
5
3
1
0

Answer 1

To determine which table best represents Julia's results based on the information given, we need to consider both the microwave time and the number of seeds that germinated. The key findings from the experiment are:

• Group 1 (control, no microwaving) should have the highest germination rate.
• Group 2 (30 seconds microwaved) should have a lower germination rate than Group 1 but higher than Groups 3 and 4.
• Group 3 (60 seconds microwaved) will have an even lower germination rate than Group 2.
• Group 4 (120 seconds microwaved) should have the lowest germination rate.

Now let's analyze each table:

Table A:

• Group 1: 1 germinated (not highest)
• Group 2: 0 germinated
• Group 3: 5 germinated (too high)
• Group 4: 3 germinated (should be lowest)

This table does not fit the expected pattern.

Table B:

• Group 1: 3 germinated
• Group 2: 5 germinated (too high)
• Group 3: 0 germinated (too low)
• Group 4: 1 germinated (too low)

This table does not fit the expected pattern.

Table C:

• Group 1: 0 germinated (not highest)
• Group 2: 1 germinated (too low)
• Group 3: 3 germinated (more than Group 1)
• Group 4: 5 germinated (highest)

This table does not fit the expected pattern.

Table D:

• Group 1: 5 germinated (highest)
• Group 2: 3 germinated (lower)
• Group 3: 1 germinated (lower)
• Group 4: 0 germinated (lowest)

This table fits the expected results perfectly, indicating that as microwave time increases, the number of germinated seeds decreases.

Therefore, Table D best shows Julia's results.