A free-rider problem.
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.
There could be several answers to this, but some most likely ones would be that they both: have very basic structures or can be pathogenic.
If the allele is beneficial then recessive alleles will drive to fixation in the population. Sickle cell trait is a fair example of this.
The dominant trait masks the recessive trait.
i mean to say what is a recessive trait not what is recessive trait sorry
A free-rider problem.
A free rider problem
A public good can be defined as a shared benefit at a societal level.
Excludability
Excludability
non-excludability
Outcomes that are shared by the general public are called common outcomes or public outcomes.
A free-rider problem.Non-excludability
A trait shared with a common ancestor is called an inherited or ancestral trait.
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.
having no backbone
Homologous structures