Could you help me fill in the blanks? Greetings and salutations to you our most honored guests from a far away place! Life on Earth has changed a great deal over the past 4 billion years here is what we know so far and the evidence that backs it up is .

Select all the correct answers. for a claim about the natural world to be considered scientific, what attributes must it have? a). it must be open to modification if new evidence doesn't completely support it. b). it must be based on scientific observations that can be repeated in a controlled setting. c). it must be applicable to future events and occurrences. d). it must be consistent with only a small portion of relevant observations or data.