Principle of fossil succession is the concept mentioned above.
The most important trait that modern fish had developed was the transformation of their skeleton from cartilage to bones.<span> This was called </span><span>ossification. </span><span>Eventually, bony fishes and sharks dominated the waters because their body structure development which helped them as swimmers is advanced compared to earlier fishes. </span>
Answer:
The eat plants and other animals
I am not sure which one you mean cuz there is two, but Plant talking it means self reproducing. The other one means Masturbation.
Answer;
-Cell wall
Explanation;
-The cell wall is thick and fibrous and provides a barrier between the cell and its external environment.
-The plant cell wall is composed of cellulose. Cellulose is a structural carbohydrate and is considered a complex sugar because it is used in both protection and structure. The plant cell wall consists of three layers. Each layer has its own unique structure and function.
-A major role of the cell wall is to form a framework for the cell to prevent over expansion. Cellulose fibers, structural proteins, and other polysaccharides help to maintain the shape and form of the cell. Additional functions of the cell wall include: Support: The cell wall provides mechanical strength and support.
