Which of the following is true concerning hull fouling commercial shipping and recreational boating

How many variables are altered in a good experiment? a.1 b.0 c.2 d.3

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

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water