Which of following selections lists bone cells in the order from unspecialized stem cell to highly specialized mature bone cell? a. osteoprogenitor cells, osteoclasts, osteocytes b. osteoclasts, osteoprogenitor cells, osteoblasts, osteocytes c. osteoprogenitor cells, osteocytes, osteoblasts d. osteoblasts, osteoprogenitor cells, osteocytes e. osteoprogenitor cells, osteoblasts, osteocytes

Aremote community desperately needs more electrical energy. it is located in an area with the following characteristics: average wind speed of 15 – 20 km/hr some medium-sized rivers with slow-moving currents few coal deposits some oil exploration being conducted within 400 miles based on the above information, which energy source would be the most economical and safest for the community to pursue? a. fossil fuel b. hydroelectric c. nuclear d. wind

Afive-year study was carried out on a population of algae in a lake. the study found that the algae population was steadily decreasing in size. over the five-year period this decrease most likely led to

How does mining impact the environment ?