Because of an insufficient oxygen supply, the trout population in a lake is dying. the population's rate of change can be modeled by dp dt = −140e−t/30 where t is the time in days. when t = 0, the population is 4200.

According to the theory of punctuated equilibrium, at what rate does speciation occur? species change depending on the rate of natural selection. after periods of stasis, new species evolve relatively rapidly. species change slowly and eventually form new species. some species change quickly and others change slowly to balance the overall rate.

What is the name of the two satelites on mars

Nucleic acid certain protein cell membranes certain carbohydrates