Answer to Question 1
Desert pavement is thought to form by either (1) deflation lowering the land surface by removing sand and silt from poorly sorted sediment, leaving only gravel and pebbles behind in a cobblestone-type arrangement, or (2) a surface that initially consists of pebbles trapping fine wind-blown sediment at protruding cobbles, forcing the fine grains to settle downward between the pebble spaces.
Answer to Question 2
Due to obstacles (vegetation, rocks, and so on) creating shadows that protect from prevailing winds, grains of sand can be deposited and remain in these wind shadows. Eventually, the sand accumulates into a dune with an asymmetrical profile, the windward slope being gently inclined and the leeward slope being steep. Between this profile and the prevailing winds, sand is continually rolled up the gentle slope and falls down the steep slope (slip face), slowly migrating the dune in the direction of air movement.
The process of clot formation.
Formation of Myelin
A model for formation of a minimal preinitiation complex (PIC) for pol II on a TATA promoter
Describe how fat is digested, absorbed, and transported in the body
Describe the Conceptual Forecasting Framework in your own words.
Bone formation in normal mice and mutants for the runt gene Cbfa1