Why do you think it is so important for scientists to be able to gather evidence from past to research the effects of climate change on marine ecosystems ?

Which of the four major uses is predicted to change the least by 2020?

Me with these questions if you’re it sure don’t answer

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction