Osteoporosis is a condition where bones become weak and brittle. it is caused by an imbalance in the activity of which cells?
osteoclasts and osteoblasts
osteoclasts and osteocytes
osteoblasts and chondrocytes
osteocytes and chondrocytes

osteoclasts and osteoblasts

Explanation:

Osteoporosis is a metabolic condition that is characterized by progressive decrease in bone density and increased risk of fractures.

To understand what happens for this disease to occur, it must be remembered that bones are composed of a matrix in which mineral complexes are deposited with calcium. Another important feature is that they are in a constant process of renewal, as they are formed by cells called osteoclasts in charge of resorbing the aged areas and by others, osteoblasts, whose function is to produce new bones.

To understand what happens for this disease to occur, it must be remembered that bones are composed of a matrix in which mineral complexes are deposited with calcium. Another important feature is that they are in a constant process of renewal, as they are formed by cells called osteoclasts in charge of resorbing the aged areas and by others, osteoblasts, whose function is to produce new bones. This permanent and constant process enables bone to be reconstructed when fractures occur and explains why every ten years or so the human skeleton is completely renewed.

In other words, for osteoporosis to occur it is necessary that cells called osteoclasts begin to resorb bone faster and cells called osteoblasts cannot fill the holes that are being formed.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

the answer to your question is slate