Sulfur is found in: lipids, proteins, sugars or DNA?

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel