Answer:
Bone homeostasis involves multiple but coordinated cellular and molecular events. Two main types of cells are responsible for bone metabolism: osteoblasts (which secrete new bone), and osteoclasts (which break bone down).
Explanation:
Answer:
Light provides brightness to see and also light carries energy
Answer:
B. Her curiosity got the best of her
Explanation:
Pandora gave in to her curiosity .
Answer:
The acceleration of the train is 5 m/s².
Explanation:
Acceleration is the change in velocity over a given time interval.
Therefore, acceleration is given as:
Where, 
are initial and final velocities and 
is the time interval.
Here, 
This gives,
Therefore, the acceleration of the train is 5 m/s².
