Which is a possible reason for the transition of algae from unicellularity to multicellularity?

A.
The transition to multicellularity enabled algae to receive nutrients through the process of photosynthesis.
B.
Through multicellularity, algae were able to move spontaneously in wet environments and find additional sources of nutrients.
C.
The evolution of multicellularity allowed algae to develop traits that kept them close to the land and thus a source of nutrients.

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 answer to your question is sperm

your answer is going to be physical weathering