Ineed this asap! for the location and geologic periods represented by these rock layers, the most drastic and sudden change in life forms occurred at the end of the geologic period. a. carboniferous b. devonian c. cambrian d. silurian

Which of the following are evidenced-based behavioral interventions for decreasing behavior? fct differential reinforcement pvt time delay a and b

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

What best explains the inability for life to exist in earth early atmosphere