Suppose the DNA of a gene contains seven regions, A through G, in that order. Regions A, B, and F are located in exons, whereas regions C, D, E, and G are located in introns. What is the order of the regions in the pre-mRNA transcribed from this sequence

The study of interaction between living organisms and their enviroment is called (a) phytogeography (b) ecology (c) phytosociology (d) ecosystem

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

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form