Refer to the figures below. Chlamydomonas and Volvox are two algal genera in the phylum Chlorophyta.Which feature present in Volvox and absent in Chlamydomonas do scientists use as evidence to support their thinking about how multicellularity evolved?
A) The ability to carry out photosynthesis
B) The ability to propel themselves through their environment
C) The ability of a cell to have more than one cellular phase
D) The ability of a cell to work cooperatively with other cells
E) The ability of a cell to change its function

Question

Refer to the figures below.  Chlamydomonas and Volvox are two algal genera in the phylum Chlorophyta.Which feature present in Volvox and absent in Chlamydomonas do scientists use as evidence to support their thinking about how multicellularity evolved?
A) The ability to carry out photosynthesis 
B) The ability to propel themselves through their environment 
C) The ability of a cell to have more than one cellular phase 
D) The ability of a cell to work cooperatively with other cells 
E) The ability of a cell to change its function

Quizplus · Accepted Answer

The ability of a cell to work cooperatively with other cells is the feature present in Volvox and absent in Chlamydomonas that scientists use as evidence to support their thinking about how multicellularity evolved. Volvox is a colonial organism made up of multiple cells that work together in a coordinated way, while Chlamydomonas is a unicellular organism. This suggests that multicellularity likely evolved from the cooperative behavior of cells within a group, leading to the formation of larger, more complex organisms.

Refer to the Figures Below