What is something that is inactive?

What organelle is a rigid protective layer? The hydrophilic part of the molecule is on the outer surface and the hydrophpbic part inside? Very few minerals are compounds? Why is sunlight important to plant? What is a giant ball of gas primarily hydrogen and helium which undergoes nuclear fusion? What human organ systems do these parts belong? What blocks enzyme activity by binding to the active site of an enzyme? Is nuclear fusion more dangerous then nuclear fission? An algal bloom of dinoflagellates that causes fish kills is called? What statement BEST explains why large predators such as lions and leopards are common in savanna grasslands but are mostly absent from desert ecosystems? What is the liquid that remains in the kidney after re-absorption? Marked with parallel scratches or grooves? What forms in an ice canyon? What illustrate how energy is distrubuted throughout an ecosystem? Who made the water balance lifts in Folkstone? What are 2 man made fibers and what are 4 natural fibers? What leaves the Mitochondria? In a metamorphic rock the alignment of the crystals or minerals determines whether the rock is? What is a fissure in the earth's crust through which molten lava and gasses escape? Were there any aftershocks from the earthquake in Japan 2011?