Answer:
The kidneys belong to the Renal system
Explanation:
The kidneys are glandular organs, which are responsible for the important function of producing urine, located on both sides of the spine. They are located outside the perioneal cavity, occupying the posterior region of the abdomen, at the height of the last two dorsal vertebrae and the first three lumbar.
Answer:
Concentration, Temperature, Mass of Particle, Solvent /medium, surface area and permeability properties of membrane.
Explanation:
The random movement of particles causes the phenomenon called diffusion. The concentration gradients of particles pushes molecules in a direction such that molecules move from a region of high concentration to a region of lower concentration.
Diffusion is a passive process (not requiring the input of energy).
The following variables are factors that affects diffusion;
Concentration - down concentration gradient favours diffusion.
Temperature - temperature increases diffusion , the kinetic energy associated with each particle also increases.
Mass/size of Particle - Smaller particles on the other hand will diffuse faster because they can move faster.
Solvent /medium Properties - Viscosity and density of the medium greatly affect diffusion. Highly viscous and dense medium slows down diffusion.
Diffusion can occur through a membrane. The two factors that are particular to diffusion through a membrane are surface area and permeability.
Answer:
this effect has only been demonstrated in model animals (in this case rats) and therefore the outcome of this research cannot be generally extended to humans
Explanation:
In the last centuries, experimental animals have been extensively used as research models in order to assess the possible outcomes in humans. In this regard, it is important to highlight that almost all medical development in use today (e.g., vaccines, medical drugs, therapies, etc) were first developed and tested in animal models before being used in humans. However, animal models are not humans. In this case, rats obviously don't have the same metabolic pathways (and food habits) as humans, thereby results cannot be translated directly to humans. In consequence, this study might be considered as a proof of concept, but further research is needed to determine the effects that drinking diet soda may have on human weight.
