Answer:
The xylem is located in the root, stem and the leaves of a plant.
The xylem contains dead cells arranged end-to-end forming continuous vessels. They have a hollow central space (lumen) through which water passes. They walls contain lignin.
The xylem carries water and minerals, up from the roots to the rest of the plant.
this organisation has been in place is the best 44455555to in a world that has been in the past for a long time pass to the voters in the past and the only one who was the
Answer:
depends on what you`re asking
In a cell: The Vacuole
In the body: Osmosis
Hello. This question is incomplete. The full question is:
"To demonstrate the arrangement of atoms in liquids, a teacher tapes off a circular section on the classroom floor. How should the students modeling as atoms of liquids stand or move in the taped-off section?
a. They should leave some vacant space and move around one another. b. A few students should move about holding hands in one half of the space. c. They should all squeeze close together so that there is no vacant space. d. A few students should run randomly in the entire space within the section."
Answer:
They should leave some vacant space and move around one another.
Explanation:
The closer the atoms meet, we can say that the more "solid" the substance will be. As the atoms move away, the substance becomes liquid and, moving further away, becomes a gas. Understanding how this works, it is easy to understand the changes in physical state caused by the change in temperature.
In this case, in order for the students to be able to represent the arrangement of the atoms in a liquid substance, they should leave a little free space within the section and move around. If they stayed together to the point where they were unable to move, they would be representing a solid substance. If they left a lot of space in the section and moved at random they would be representing a gaseous substance.
Answer: The enzyme is a catalyst that speed up the rate of the reaction.
Explanation:
The enzyme can be defined as the protein that is involved in the catalytic activity of the reaction. The shape of the enzyme is important as it determines to which substrate it binds to. The enzyme is specific to the substrate and binds to a specific kind of substrate. During the digestion process the enzyme binds to the specific substrate like protein, carbohydrates, fats, and other biomolecules present in the food to simplify the digestion process. Starch is digested into maltose by the enzyme salivary amylase in the mouth.
