Adhesion molecules in choanoflagellates serve the same funct

Adhesion molecules in choanoflagellates serve the same function as those in their sister group, the animals. This means that:

Question 3 options:

evolution adapted unicellular tools for multicellular purposes

choanoflagellates evolved from complex multicellular animals

animals and choanoflagellates likely evolved adhesion molecules independently

gap junctions allow animal cells to communicate effectively with each other

Solution

choanoflagellates are closest living single cell relatives to animals. according to recent studies these are considered as cousins to all animals during evolution. multicellular organisms strcutural integrity depends upon establishment and maintenance of stable cellular connections. these unicellualar animals has developed independently adhesion molecules to communicate each other for protecting their selfs and for survival by communicating with environment. these cell colonies during evaluaiton became a muticellualr organisms. these reason for considered why choanoflagellates are consins for animals.