Which of the following statements are false: Some veins have valves that aid in the one-way propagation of blood. Some veins depend on the activity of skeletal muscles to conduct blood. The endothelial lining of veins is smooth. Veins always conduct blood towards the heart. Veins only conduct oxygen poor blood.

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.

the correct answer should be false

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