When a population has inhabited an area for a long time and the population size has stabilized because of resource limitations, A. the population is below carrying capacity.
B. population density is very low.
C. population density is very high.
D. predation decreases

Under normal temperature and pressure conditions, what type of rock could be formed from weathering in erosion of metamorphic rock

Wo audio speakers are placed on a vertical rail. speaker a is placed at head-level while speaker b is place at some variable height, \delta yδy, above speaker a. both speakers receive simultaneous input from a sine-wave generator so the speakers each produce a pure sinusoidal sound wave with a wavelength of 0.531 meters. calculate the lowest height that speaker b can be placed above speaker a to produce a minimum of sound heard by person standing \delta x = 7.86δx=7.86 meters directly in front of speaker a.

Aplane travels 1000 miles in 5 hours .what is the planes average speed?