Describe what would likely happen to the whales and other consumers in a marine ecosystem food web if a disease killed off most of the phytoplankton

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.

Can someone give me the answer to this question? you so much

Are the brightest stars low magnitude or high magnitude?