For many years, whole or fragmented hominid skulls have been excavated. Some of these skulls date from as early as 6 million years ago. By comparing these skulls with other archeological findings, scientists are able to determine when major accomplishments were successfully achieved. Which of the following statements correctly states the evolutionary progression of hominids?

a. Hominids first developed tools, then language. The brain got smaller.

b. Hominids first developed tools, then language. The brain increased in size.

c. Hominids first developed language, then tools. Brain size decreased.

d. Hominids first developed language, then tools for farming. The size of the brain increased.

Name the process by which soil is formed from rocks? ?

If the temperature in an area drops five degrees between one day and the next, has the climate of the area changed? explain.

On the bahamian island of andros, mosquitofish populations live in isolated freshwater ponds that were once united. currently, some predator-rich ponds have mosquitofish that can swim in short, fast bursts; predator-poor ponds have mosquitofish that can swim continuously for a long time. when placed together in the same body of water, the two kinds of female mosquitofish exhibit exclusive breeding preferences. if one builds a canal linking a predator-rich pond to a predator-poor pond, then what type(s) of selection should subsequently be most expected among the mosquitofish in the original predator-rich pond, and what type(s) should be most expected among the mosquitofish in the original predator-poor pond?