is the group of organisms that is often at the base of the food webs in open water aquatic ecosytema

The table below shows the number of foot bones in some horse fossils.horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s

How does science influence the decisions made about social, economic, and political issues?

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic