A main sequence star is bigger than a neutron star,because neutron stars are remnant degenerate matter from a collapsed star,they are completely made out of Neutrons and are extremely dense,and have a diameter of only a several Kilometers.M<span>ost of them have a mass of 1.35-2 Solar masses.</span>
Since two females are unable to reproduce. Therefore, if only two females are still alive, the species will become extinct.
<span>biological control would be the answer
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