Which of the following states that the amount of taxes people pay should relate to their income or wealth? A) ability-to-pay-principle C) benefits-received principle
B) marginal tax principle D) income principle

answer; ///i believe that the correct answer is (a) specialized cells)

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.