Quién quiere hablar pero tenemos que hablar en español

Astudy group should stay around 3-6 people. true or false

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.

Ased on the information in "edward jenner and the history of smallpox and vaccination,” after concluding that cowpox could be used to eliminate smallpox, jenner