well as short as i can make this......
the symbiote is a living suit, it needs host's to survive. more specifically adrenalin. recently Brock reveald he had cancer and the symbiote kept him alive,and the symbiote feed of his cancer.
the symbiote grew tired of brock and left him to find a new host, Brock found spidey and needed help. a fight occurs and brock died and his corpse is thrown into the symbiote. this cuased the symbiote to mutate into a monster like version of venom and is now ready to have a new offspring like Carnage, but in its current state its unlikely the offspring will be anything like carnage. the symbiote still wants a host but has setteld with consuming one after another, after another until a worthy host is foud ((this is whats happening with wolvie))
that should cover most of the change between old Venom and new
well Brock had cancer even before he met the symbiote it was his real reason for hating spider-man. He knew he didnt have long to live, and the sin-eater story was much more important to him then he first led on, it was supposed to be his life's work and when peter exposed it thats why he really hated him, not becuase he lost his job.
even tho it suck's Brock was dying the last few pages were ver well written
and Carnage is still around, he is currently imprisond at Ravencroft, his connection is differnt than normal. the symbiote is in his blood now, and if it was removed he could just recreate it.
well anyhow, im sure we all agree the true Venom was brock and the symbiote, and this was lifted from the marvel directory should answer anymore question's about his abilities and such
Height: 6 ft. 3 in.
Weight: 260 lbs.
Eyes: Blue
Hair: Redish Blond
Strength Level: Venom possesses superhuman strength enabling him to lift (press) almost 11 tons.
Known Superhuman Powers: The alien costume, which has grafted itself to the nervous system of Eddie Brock, somehow absorbed the powers of Spider-Man during its brief symbiotic relationship with him. These powers have now been transferred to Brock, so long as he wears the costume. Brock had conditioned himself to lift (press) almost 700 lbs. Before he came into contact with the costume. Once they merged, the costume added Spider-Man’s superhuman strength to Brock’s vast human strength, making him more powerful than Spider-Man.
The alien costume also replicates Spider-Man’s ability to cling to walls by controlling the flux of inter-atomic attraction between molecular boundary layers.
Venom can also shoot strands of the alien’s substance in the form of “webbing” at high pressure up to a distance of 70 feet. The alien’s substance seems to be composed of tough, flexible fibers of organic polymers, which regenerate swiftly after “shedding.” The strands have extraordinary adhesive properties, which diminish rapidly once they abandon their living source. After about three hours, with no source to nourish them, the strands dry up like dead skin and dissolve into a powder. The strands possess a tensile strength of 125 pounds per square millimeter of cross section.
Venom also possesses an extrasensory ability similar to Spider-Man’s spider-sense. This response is not as complicated as Spider-Man’s inherent sense since the alien costume can detect danger from every direction and conduct Brock in plenty of time. It is not as efficient as Spider-Man’s spider-sense because it takes longer to communicate the danger, and Brock’s reflexes are not as fast as Spider-Man’s, even though they are enhanced by the alien costume. It is unknown whether Venom could dodge a gunshot or a barrage of bullets.