Imagine that you are at the beach. You can observe sea urchins, clams, seaweed, and fish in the ocean. Which organisms will be more affected by the increasing acidity of the ocean? claims
sea urchins
fish
seaweed

Sea urchins? Is it multiple choice?

sea urchins

Explanation:

sea urchins may be vulnerable to increasing acid levels in the ocean. Ocean acidification could interfere with the urchins' ability to transform calcium, magnesium and other minerals from seawater into their “tests” (the white shell left when the animal dies), spines and teeth.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.