Which of the following is caused by the modification of density–independent factors? a. parasitic wasps invade cocoons, killing many caterpillars. b. periodic drought causes an abrupt decrease in vegetation. c. organisms compete for food, water, and other resources.

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

Lactic acid and energy are produced in muscle cells during choose 1 aerobic respiration cellular respiration anaerobic respiration cellular division

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic.