Sea otters are a keystone species, they eat sea urchins which feed on sea kelp A large variety of species depend on the kelp forests for food and shelter. Which species would be impacted by the removal of sea Otters?

All species within that ecosystem would be affected.

Explanation:

Keystone species are species that other organisms largely depend on, if they disappeared, then all organisms within the ecosystems would be affected. For example: Sea urchins would overpopulate and over eat on sea kelp, which may threaten extinction in that area. Sea kelp dying would effect the organisms living/eating sea kelp

if someone had the list of traits you provided

i think the correct answer from the choices listed above is option c. the statement that is correct about   the cave and geyser would be that the cave is formed when groundwater reacts with the limestone in rocks and the geyser is formed when groundwater gets heated. hope this answers the questio