What is A B C and D? You have to tell us what the options are so we can answer.
Answer:
b. "Blast" cells are undifferentiated, actively dividing cells.
Explanation:
Connective tissue cells are dividing cells . These cells are fibroblasts. Mast cells, adipocytes and leukocytes. Blasts are immature dividing cells which are precursor to different connective tissue cells. Connective tissue does contain cells I.e fibroblasts, chondrocytes, osteocytes,etc. Chondroblasts are only found in cartilage not all types of connective tissue.
Answer: Anesthesia
Explanation:
Anesthesia was used in 95% of Civil War surgeries. Sulfuric ether had been discovered in Europe in the 1830's and was first used as an anesthetic by William Morton in 1846. After a successful public demonstration it became widely used in surgery.
Answer:
Examples of astronomical objects include planetary systems, star clusters, nebulae, and galaxies, while asteroids, moons, planets, and stars are astronomical bodies. The birth of the sun is what created the universe. When the sun was first born it had huge amounts of gravity. This gravity was strong enough to make rocks and other celestial bodies come together to form our planets.
Explanation:
