In a mixed bilayer at lower temperatures, cholesterol restricts the movement of nearby acyl chains, resulting in a more membrane. As the percentage of cholesterol in the membrane increases past a certain point, the membrane becomes more . Question 23 options: solid, fluid fluid, solid

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.