Im not sure but im guessing its B)
Answer. Any tumor that arises from the glial (from the Greek word for “glue”), or supportive tissue, of the brain is called a “glioma.” One type of glioma is the astrocytoma. Astrocytomas are named after astrocytes, the star-shaped cells from which they grow. Astrocytomas are graded to describe their degree of. abnormality.
Symptoms vary depending on the location of the brain tumor, but can also include any of the following: Persistent headaches. Double or blurred vision.
Answer:
The procedure by which the developing cartilage systematically gets substituted by the bone to produce the growing skeleton is termed as endochondral ossification. The columns of chondrocytes are after that get invaded by the metaphyseal blood vessels, and on the residual columns of the calcified cartilage the formation of bone takes place.
The following are the essential steps in the procedure of endochondral ossification:
1. The chondrocytes get enlarged and the enveloping matrix starts to calcify.
2. The enlarged chondrocytes die.
3. The growth of the blood vessels takes place surrounding the edges of the cartilage.
4. The perichondrial cells turn into osteoblasts and generate a superficial bone layer.
5. The osteoblasts substitute the calcified cartilage with the spongy bone.
Answer:
n-1 would be the answer :)
Explanation: