Talitha is performing an experiment on how plants get water up to their leaves. She adds two drops of blue food coloring to a beaker of water. Then, she hears a fire alarm and heads outside. When Talitha gets back to the classroom, the water in the beaker is all pale blue. She recognizes that the process of has caused the dye to spread evenly through the water.

b. diffusion

Explanation:

Diffusion is the term that describes the phenomenon where particles of a substance move way from an area where there is a high concentration of that substance to areas of lower concentration.

When Talitha added the two drops of food coloring, their particles spread from where they were dropped which was an area that was concentrated with the dye, to the rest of the water which had a low/ zero concentration of the dye.

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation:

the tricuspid valve is present between right atrium and right ventricle