Answer:
mountains and rivers because a geographical barrier can be a mountains range, a large canyon, a body of water
Answer:
C. Water will flow into and out of the cell, but the overall net movement will be into the cell.
Explanation:
In a hypotonic solution, the concentration of water outside the cell is higher than inside the cell and the concentration of the solute is lower than inside the cell, therefore, water will flow in and out of the cell but the net movement of water will be from area having higher water concentration to lower concentration.
That means the net movement of water will be into the cell if a cell is placed into the hypotonic solution. Water moves in and out of a cell by the process called osmosis which is a type of diffusion.
This movement of water into the cell will swell cell and the cell can burst if it is not protected by a cell wall. Therefore the right answer is C.
Answer:
The correct answer is A.
Explanation:
An osteoclast is large multinucleated cell present in the bone. Its main function is bone resorption, which occur when the osteoclasts secret hydrogen ions and many enzymes. As a result, bone matrix is digested by them. The most important enzyme is the protease cathepsin K, which degrades collagen.
Cathepsin K is regulated by parathormone, calcitonin and growth factor interleukin 6.
Matrix digestion is key during <u>bone fractures</u>, because it allows the repair and remodeling of the bone. But when this action is excessive, it can lead to osteoporosis (loss of bone density).
Hunters help keep wildlife populations at a healthy balance
Answer: True
Explanation: Hope this help :D
