Acube consists of twenty-seven 2×2×2-inch small cubes. all four of the corner cubes on the edge of the top layer fell off. which statement is true about the surface area of the resulting solid?
1. it is 32 cubic inches less than the surface area of the original cube.
2. it is 32 square inches greater than the surface area of the original cube.
3. it is 32 square inches less than the surface area of the original cube.
4. it is the same as the surface area of the original cube.

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.