One of the main causes of soil pollution are chemicals which we produce by industrial activity and agricultural chemicals
Cells need a source of energy, they get this energy by breaking down food molecules to release, the stored chemical energy.
The order is calcification of matrix >> cells differentiate into osteoblasts >> formation of the primary ossification >> osteoclasts break down the spongy bone >> formation of the secondary ossification (5,3,1,2,4). It is a fundamental process.
<h3>What are osteoblasts?</h3>
Osteoblasts are cells of the bones, which act to generate bone matrix and modulate the process of mineralization of the skeleton.
Endochondral ossification refers to the mechanism through which the cartilaginous bones generate longitudinal growth.
This mechanism (endochondral ossification) is fundamental during fetal/embryo development.
Learn more about endochondral ossification here:
brainly.com/question/5325975
Answer:
build up
Explanation:
b. accumulating increased concentration
first left (up) trachea
first left (down) diaphragm
right (up) bronchiole
right (down) alveolus
