The nearly complete 1.6 million year ol dskeleton known as the Turkana Boy was discovered in 1984, and these humans possed an essentially modern body structure, but with brains not much above half the modern human average. True or false

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.

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above