Mark’s dentist gives him a shot before performing a root canal. the dentist says the shot is anesthesia and that mark won't feel any pain. mark feels his gums going numb, while the rest of his body is working fine. what has the anesthesia actually done? the anesthesia has from carrying signals to . 1).interneurons 1b).motor neurons 1c).sensory neurons 2a).spinal cord 2b).brain 2c).muscles

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