You need to measure three things: 1. a quantity of water2. the length of a leaf3. the mass of a small stonewhich unit of metric measurement will you use for each one?

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

Analogy- 1 is to arete as 5 is to cirque horn glacial valley hanging valley

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria