Tom stops using a new skin cream for five days to determine if the cream is the cause of a recent rash. what stage of the scientific method is tom using? plz i think it is experimenting. experimenting hypothesizing predicting evaluating

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing