A vacationer floats lazily in the ocean with 90% of herbody below the surface. The density of the ocean water is1025 kg/m3. Show that the vacationers average density is923 kg/m3.
Biogeography in a Changing World GEOG 2 Lecture 4: Biological Interactions and Distributions Professor D. Cusack dcusack@geog.ucla.edu Office: 1113 Bunche 1 What factors determine the spatio- temporal distributions of organisms History Chance Physical Biological climate competition topography predation soils symbiosis dispersal disturbance Human activity 2 Biological Interactions • Niche Theory • Predation • Competition • Symbiosis Niche Theory • The n-dime