Dimitri wants to measure the height of the palm tree. he lines himself up with the palm tree's shadow so that the tip of his shadow meets the tip of the palm tree. then he ask a friend to measure the distant from where he was standing to the tip of his shadow and the distance from the palm tree to the tip of his shadow what is the height of the palm tree

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.