In accordance with the Borg pursuit of perfection, a blending of the organic and synthetic, very little of her original humanoid form remained. Her face and upper torso were organic while the rest of her body, including her skull and spinal cord, were synthetic.
The Borg Queen, as of 2375, was a member of Species 125 before being assimilated, and thereby had the body of a female of this species prior to having a cybernetic body constructed for her. There are faint horizontal lines on the Borg Queen's neck.
The Borg Queen returned in the second season of Star Trek: Picard, played by Annie Wersching and Alison Pill. This Borg Queen was from an alternate timeline created by Q's manipulations and she merged with Doctor Agnes Jurati.
According to Memory Alpha she is a member of Species 125, which is a Borg designation, but it doesn't actually say what the name or culture of this species is like. Or was like, perhaps they were all assimilated so long ago that nobody remembers who they were.
Originally Answered: Is the Borg Queen 7 of 9's mother? We know for a fact that she is not. The Queen was a member of Species 125, Erin Hansen was human and therefore a member of Species 5618.
By the time of the series finale, "Endgame", The Doctor had managed to remove the implant, allowing Seven to pursue a relationship with Chakotay. The alternative future seen at the start of the episode showed that Seven and Chakotay were eventually married, but she died while Voyager was still travelling home.
It is in Star Trek: Voyager where we learn that the Borg Queen, obsessed with power, didn't create the Borg; she was just tasked with leading the Collective. The collective consciousness, where each drone is linked through the subspace network, allows for the Borg to adapt quickly and eliminate threats as they arise.
Officially, the existence of a Borg homeworld is a hypothetical one as it has yet to be revealed in a canon Star Trek source. However, an identity for the Borg homeworld is given by the non-canon novel Lost Souls, which names it Arehaz.
The Borg discover Species 8472 in the Delta Quadrant and try to assimilate its biotechnology, which is more advanced than anything the Borg have seen. The Borg quickly realize that Species 8472 is immune to assimilation and that contemporary Borg technology is no match for it.
It was later revealed that the Borg Queen was merely an avatar for the true power behind the Collective. The Destiny trilogy also mentioned that multiple Queens have been known to exist simultaneously in the Collective, but they all possessed the same agenda.
The Queen was seemingly killed by the Enterprise-E crew before they returned to 2373. However, the Borg Queen was subsequently resurrected and returned in Star Trek: Voyager, where the crew of the USS Voyager did battle with her on multiple occasions while traveling through the Delta Quadrant.
However, the Queen captures the admiral and begins to assimilate her into the Borg collective. Admiral Janeway then turns the tables by unleashing a pathogen she was carrying in her bloodstream into the collective, devastating it and killing the Queen.
Species 149 is the Borg designation for this species. Its actual name is unknown. This medically-advanced species was assimilated by the Borg some years before 2374. This species had developed technology that allowed them to revive a deceased person as long as 72 hours (3 Earth days) after brain-death.
The borg collective as a whole didn't join the federation it was just a small splinter group of the borg that joined the federation the main borg collective is still an enemy of the federation and would mostly likely never join the federation instead would keep on trying to assimilate the federation.
Whilst the Borg are primarily a nomadic space-bearing race they do however occupy planets with a typical population of nine billion drones primarily for the purposes of strip-mining the planets of all natural resources.
Q seemed frightened of Guinan, telling Picard that she is "not what she appears to be," and that Picard should remove her from the Enterprise. Considering Q's abilities, it's unclear why he would be afraid of Guinan, and Star Trek has never offered a real explanation for Q's reaction.
While Q's powers are almost inconceivably vast, he does have to answer to the Q Continuum, and has had his powers revoked by them on more than one occasion for indulging in personal vendettas and petty squabbles. That said, there are few Star Trek characters more powerful than Q.
Other times, notably during "Deja Q" and Voyager, Q appears to the crew seeking assistance. Gene Roddenberry chose the letter "Q" in honor of his friend Janet Quarton.
But we never saw non-humanoid Borg in the shows and movies. We know that they tried to assimilate species 8472, but it failed because of their biology being resistant to the nanites.
Assimilation. The Borg don't reproduce but assimilate other humanoids, which keeps their population rejuvenated. Assimilation can be traced back to the exact beginning of the Borg. When a Borg drone assimilates another humanoid, they use tubules to inject exactly 10,000 nanoprobes into a victim's blood stream.
Could "Q" or a "Founder" be assimilated by the Borg? Yeah, maybe. There seem to be some species like species 8472 though, that are just incompatible with assimilation, but for the most part they can usually find a way to assimilate many species.
Seven arrives at the Artifact, a disabled Borg cube captured by the Romulans, after being summoned by Picard's companion Elnor. To save the former Borg onboard from execution at the hands of the Romulans, she temporarily connects herself to the cube inside the queencell, taking on the role of a Borg Queen.
A Chakotay cameo would, therefore, have distracted from the overall story of Admiral Jean-Luc Picard (Patrick Stewart) confronting the trauma of his past. Chakotay being at the head of a fascist government also doesn't fit with his character, as he was a member of the Maquis, which fought against Cardassian oppression.
