Spiders scare me. But I do like Huntsman Spiders because they kill cockroaches. What kind of spiders do you hate or like? 
Tarantulas! they are an invertebrate that relies on an exoskeleton for muscular support
I've seen those in pet stores.  Do you have a pet Tarantula? 
I know that for the most part they arent dangerous to humans, and some are popular in the pet trade but i am deathly afriad of them
Oh, I guess you never had one then. I think they are ok but they don't have much utility.
Spider
Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs able to inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exceptions of air and sea colonization. , at least 48,200 spider species, and 120 families have been recorded by taxonomists. However, there has been dissension within the scientific community as
their emboli, mature male sexual organs on pedipalps, stuck in the molt. Most tarantula fanciers regard females as more desirable as pets due to their much longer lifespans. Wild-caught tarantulas are often mature males because they wander out in the open and are more likely to be caught.
Lifecycle.
Like other spiders, tarantulas have to shed their exoskeleton periodically to grow, a process called molting. A young tarantula may do this several times a year as a part of the maturation process, while full-grown