Because of the arrangement of carbon's electrons it tends to form long a. bonds. b. chains. c. protons. d. traits.

Answer

            The correct option is B.

Reason

           Carbon belongs to group 4th A of the periodic number. It has four electrons in the outermost shell so they can form four bond to complete its valence shell.

Catenation

              It is the ability of carbon atom to form a long chain. Carbon atom is the back bone of hydrocarbons. The main backbone of hydrocarbon is carbon chain.

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.