GIVING BRAINLIEST:) during ecological succession the first organisms to enter an ecosystem for reestablishment are called pioneer species. Two examples of organisms that are pioneer species would be and .

A. Miss and lichen
B. Shrubs and trees
C. Small animals and shrubs

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.