How many electrons are in the outermost energy level of a chloride in a table salt

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.

Name one similarity and one difference between the morphology of a brachiopod and a bivalve

What are some possible short and long term medical concerns for crew members on longer space exploration trips