The monarch migration usually starts in about October of each year, but can start earlier if the weather turns cold sooner than that. The monarch butterflies will spend their winter hibernation in Mexico and some parts of Southern California where it is warm all year long.
Cartilage is a connective tissue whose cells, called chondrocytes, secrete a very specialized matrix. The basophilia of the matrix is due to the GAGs in its ground substance, specifically hyaluronic acid, chondroitin sulfate and keratan sulfate.onnective tissue is the most diverse of the four tissue types with a wide variety of functions. It ranges in consistency from the gel-like softness of areolar connective tissue to the hardness of bone. Blood is also a connective tissue.
2- Some of mesenchymal cells become chondroblasts and lay down hyaline cartilage. 3- Some of mesenchymal cells on the surface of the cartilage form a membrane called perichondrium. vascular and contain osteogenic cells. 4- The cells of the cartilage at first small and irregularly arranged.n this tissue, chondrocytes are located within a threadlike network of elastic fibers within the extracellular matrix. A perichondrium is present. Elastic cartilage possesses greater flexibility than hyaline cartilage and maintains the shape of certain structures.