What is the first period of Earth's development called? A. Cambrian
B. Precambrian
C. Paleozoic
D. all of the above

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

As soon as i live in alabama and i have question to me with a report. or rather a statement. the statement i need with: discuss the influence of cost and availability on your states (alabama) statistics. i really need to complete this. so anything will ! 20 points are up for grabs to the most !

What nursing actions are part of the acute respiratory distress syndrome clinical network (ardsnet) protocol?