color
Natural selection is when organisms with a desirable trait mate and produce babies with that trait. The process of elimination will eventually diminish any that do not have that trait/
There is no specific color associated with laziness. The concept of associating a color with a particular trait like laziness is subjective and varies among individuals.
The reproduction among organisms in Osteichthyes varies greatly, but is all sexual reproduction with separate sexes.
An ancestral trait is a trait that is shared by a group of organisms and their common ancestor. It is a characteristic that has been inherited from a common ancestor and has been passed down through generations without change.
By definition all organisms grow and reproduce.
Purebred.
There is no particular relationship between organisms that have identical alleles for a particular trait.
Adaptation
A trait shared by at least two and perhaps more taxa and devolving on common ancestry is synapomorphy. A homologous trait is quite similar. The forelimbs of all tetrapods are devolved from common ancestry and would be traits shared by many taxa and homologous traits. Cladists use the word synapomorphy more to show closer relationships. Pliesiomorphy is the word cladists use to show more ancient relationships.
why are traits different in organisms
A derived trait is a characteristic that is present in an organism, group of organisms, or species as a result of evolutionary changes or adaptations from its ancestral form. It is a feature or attribute that has evolved over time and is unique to a particular lineage or group of organisms.
Yes, organisms that are purebred for a trait will generally express the same characteristics for many generations as long as there is no genetic mutation or environmental influence that causes a change in the trait. This is because purebred organisms have homozygous genotypes for that trait, resulting in consistent expression of the trait in offspring.