Select the true statement. a. rna is mostly single-stranded; dna is always double-stranded. b. rna and dna usually have identical intravenous bases. c. several types of dna regulate protein synthesis.

New york city has 2,181 inhabitants per square mile. the state of alaska has 1.03 inhabitants per square mile. ecologists would say alaska has a low exponential growth population density birth rate carrying capacity

Identify the examples in which sam interacts only with natural resources

19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase