Starting on bare rock what is the usual ecological succession of organisms

The arrows indicate the direction of wind flow. which place experiences monsoons?

Plz ! what does it mean for an allele to be dominant?

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems