Answer:
Articular cartilage also serves to cushion the ends of long bones against impact. It does not attach tendons. Red blood cells are made in the bone marrow and the synovial membrane is made of a different type of connective tissue.
Answer:
C.
Explanation:
A is mental well-being.
B is social well-being.
C is physical well-being.
D is medical well-being.
Answer:
Image result for What are the keys to biodiversity and ecosystem stability?
Variation among species in their response to such fluctuation is an essential requirement for ecosystem stability, as is the presence of species that can compensate for the function of species that are lost.
Explanation:
The correct answer is B. A bony skeleton
Explanation:
In biology, Chondrichthyes are mainly marine jawed fishes that have cartilage skeletons rather than bone skeletons and also they have paired fins, this includes animals such as rays and sharks. In terms of origin, it is believed this type of fishes are mainly linked to placoderms that were a type of primitive fish that lived during the Devonian period that had a body skeleton as they were covered by hard structures called plates made of bone. Because of this, it is believed this structures evolved into less rigid ones made of cartilage although both the primitive fish and modern Chondrictyles share features such as the structure of jaws. Therefore, Chondrictyles descended from fishes that had a bony skeleton.
