The 3 phases that are part of the cell cycle would be
Interphase
Mitotic phase
Cytokinesis.
Cuz they combine during fertilization and since 2 halves = 1 whole, u get gametes w a full number of chromosomes
The three observations that could help an individual in distinguising whether the organism is a fish or not is that it should live under water as fish can't survive without water, another thing is that it should laid eggs when it comes to giving birth because when it does not lay eggs but produces a living organism normally without an egg, it is considered to be a mammal and lastly, the appearance it possess such as having gils or fins.
Because some trait's phenotypes don't indicate their genotypes so in order to predict the phenotype of the offspring you have to know the genotypes of the parents
