Why do scientists organize living things into groups? a. so they can find them in the wild more easily b. so that the organisms are easier to study c. so they can make sense of the variety of rocks on earth d. so products from living things can be easily found in groceries

Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

The least penetrating form of radiation is