8) If a substance measures 7 on the pH scale, that substance
A) has equal concentrations of H+ and OH-ions.
B) may be lemon juice.
C) has a higher concentration of OH- than H+ ions.
D) probably lacks OH-ions.
E is basic.

in 1972 the fluid—mosaic membrane model of membrane structure was proposed based on thermodynamic principals of organization of membrane lipids and proteins and available evidence of asymmetry and lateral mobility within the membrane matrix [s. j. singer and g. l. nicolson, science 175 (1972) 720–731].

it is a learned trait

explanation:

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls