The blank should be digestion (process).
The action of cutting food into smaller pieces with teeth is a physical change/digestion, because this action does not involve enzymes, which are necessary for chemical digestion, examples are such as turning starch to Maltose.
The action of cutting and crushing food can increase the surface area, so that it can speed up the chemical digestion later on and provide the most nutrients for the body.
Answer:
Location and structure of Merkrl's discs and Pacinian corpuscles.
Explanation:
Merkel's disc : this is located in the upper layers of the skin near the base of the epidermis. They are densely distributed in the fingertips and lips.
Pacinian corpuscles : they are nerve endings in the skin responsible for sensitivity to vibration and pressure. They are large and fewer in number. It is approximately oval shape and 1mm in length.
Answer: Facilitated diffusion. Some molecules, such as carbon dioxide and oxygen, can diffuse across the plasma membrane directly, but others need help to cross its hydrophobic core. In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers.
Explanation:
Answer:
The roots pulled up the food coloring with the water and it was transported through the xylem to the petals.
Explanation:
the xylem is one of the transport tissues in plants. It transfers water and nutrient from roots to stems and leaves.
