Match each type of sedimentary rock with its composition. 1. mineral crystals clastic sedimentary rock 2. remains of dead creatures chemical sedimentary rock 3. weathered rock particles organic sedimentary rock

Choose the molecule that is described by each phrase. energy used during long activities:

Give the biological term for: structures that display characteristics of living organisms only within living cells

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.