Which is not an example of matter and energy cycling through living things

A rock resting on the ground is not an example of matter and energy cycling through living things

The other examples include cows eating grass. Here, the mass of grass is consumed by the cow, from which it gets energy. So, clearly it’s a cycle of mass and energy.

A growing grass absorbs atmospheric oxygen and carbon dioxide, water from underground, and energy from sunlight. So, it is also an example of mass and energy cycling.

A grass giving off oxygen by the process of photosynthesis also involves the absorption of carbon dioxide and water. So it’s also cycling of mass and energy. The rock sitting alone has no activities going with it. So, it’s the answer.

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liquid crystals are matters in a state which have properties between those of conventional liquids and those of solid crystals[1]. liquid crystal is partially ordered and anisotropic. in terms of molecular order, liquid crystal molecules have one-dimensional or two-dimensional long - range order.

they deliver oxygen to the blood