Which of these is an advantage of multicellular organism A. They can form complex organ systems

B. One cell performs all of the necessary functions

C. All of the cells are the same

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.