It is called an autotroph.
Answer:
It is the biological concept of species
Explanation:
In 1970 Mayr stated that "species are formed by groups of potentially intercrossing populations that are reproductively isolated from others". The biological concept of species puts emphasis on existence of barriers that limit the gene flow among groups within the same species
Well either way, it would be difficult for them to find mates, but if 50% of males were gone, the females would be able to reproduce with the men they have but if the females were killed off, it would affect birth rates even worse because the women carry the offspring. All of this also includes the offspring's gender