Dr. gregory erickson studied the fossilized bones of a dinosaur called albertosaurus to determine the age at which individual dinosaurs died. from this data he constructed a survivorship curve.

d.

hope to be marked brainliest

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.

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .