The location of two hikers is marked on the topographic map at right as points Q and S. Each hiker climbed to point R along the path indicated by the arrow. What was the change in elevation for
the hiker who took the steepest path to point R? Record your answer in the box below. Be sure to
use the correct place value.

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.

Can nonrenewable resources be used sustainably?