Describe surface tension in a group of bonded water molecules

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water

Which of these is an example of structural protein in plants