Amarine biologist observed an organism. it had openings on its body through which food particles and water passed. which phylum does the organism belong to? cnidaria porifera platyhelminthes

What are the seven economic and social goals?

Ture or false evidence for evolution includes millions of fossils

Prior knowledge can be gained from personal experience and a) forming well-developed hypotheses. b) listening to opinions of other people on a topic. c) researching previous experiments and results on a topic. eliminate d) no other methods. it can only be gained by personal experience.