Answer:
Hyaline cartilage.
Explanation:
Tissue are ensemble of specialised cells that perform functions.
Cartilage is a smooth and translucent tissue.
Hyaline cartilage is a glass like, transluscent cartilage found in the surfaces of joints. It is pearl grey like in color. It is normally found at the end of long bones of ribs, larynx and trachea. It has a lot of collagen
Answer: Telomerase is the enzyme responsible for maintenance of the length of telomeres by addition of guanine-rich repetitive sequences. Telomerase activity is exhibited in gametes and stem and tumor cells.
Explanation:
Lamprey and hagfish are jawless fish, with skeletons composed of cartilage. They do not have scales and are considered primitive fish. They are in the superclass cyclosystoma.