1. (10 pt) all echinoderms move by pumping water into their tube feet, and their body is protected by hard plates. what other characteristic is common to all echinoderms? a. they have tentacles. b. their bodies have radial symmetry. c. their bodies are made up of a head, thorax, and abdomen. d. they have eyespots.

What two temperature scales do scientists use

Buuy which of the following did you include in your response? organs perform specific functions in the body to keep it alive. organelles perform specific functions in cells to keep them alive. done

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto