What structure holds the individual chromatids together? ?

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

Identify the examples in which sam interacts only with natural resources