Well Primary Succession means you are the first organisms of that area after it is destroyed completely or if it's new. Secondary Succession is when an area is not destroyed completely but the organisms that remain colonize the area again. I believe it's C.
I'm not sure about number 1 or number 6, but I know that 3 is nucleic acid and 5 is solution.
Ants
Earthworms
Rabbits
Armadillo
Badger
Bilby
Burrowing owl
Chipmunks
Olm
Mole
Meetkats
Https://www.press.muni.cz/media/3019066/answers_to_all_questions.pdf
Answer:
u have to find the circumference diameter and radius of the two balls
Explanation: