In biology class, Kaylee observes cells. Each cell has a structure that separates the inside of the cell from the environment. Which structure is Kaylee observing? A. cell membrane
B. genetic material
C. nucleus
D. cytoskeleton

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?