Scientists who study rock formations in caves describe some of the formations as "living rock" because, under certain conditions, they increase in size. Which statement would best dispute the claim that these rock formations are living?(1) Rocks are not composed of cells, while living
organisms are.
(2) Rocks perform complex metabolic processes,
but cannot grow.
(3) Rocks cannot reproduce sexually.
(4) Rocks remain stable in a wide range of physical
conditions.