Table of results
effect time to boil
salt
concentrati
on
1. initial
temperatu
re
boilin
g time
to 40
2. initial
temperatu
re
boilin
g time
to 40
0°
1-57
23
1: 12
24
1: 36
1: 17
10°
24
1: 14
not done
not
done
1: 57+1: 36+1.14+1.12+1.17=6.36.2=3.18
where is the average?

Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10

Why did ancient cultures track seasons?

Runoff from farland into a river is a example of what kind of source pollution?