Which of the following statements describes an abyssopelagic zone? A. This zone measures 20,000 feet to 36,000 feet below the surface, and has a name that means "unseen."
B. This zone measures from 600 to 3,000 feet below the surface, and is sometimes referred to as the “twilight zone” because of the amount of ambient light available.
C. This ecosystem is in a transitional area that is influenced by the cycle between low and high tides.
D. At the depths of 13,000 to 20,000 feet, this zone resembles a bottomless pit of complete darkness.

B

Explanation:

This zone measures from 600 to 3,000 feet below the surface, and is sometimes referred to as the “twilight zone” because of the amount of ambient light available.

brown

explanation:

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.