Which two important chemical processes are basically the opposite of each other? photosynthesis and decomposition photosyntheis and cellular respiration combustion and cellular respiration combustion and compaction

Which experiment would most likely contain experimental bias

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

Are the earth's ocean floor and continents the same age geologically? why or why not?