yes they do they are both invertebrates
No.
the grasshopper is more closely related to the housefly.
The spider and ant may be both invertabretes but the ant is not part of the spider family.
A spider-ant.
The spiny anteater or echidna is most closely related to the platypus.
ant
The beetle that closely resembles an ant in appearance is called a "velvet ant" or "cow killer ant."
IT matters what kind of spider you are refuring to but ussually yes
Scorpion and Daddy long-legs. The Daddy long-legs isn't actually a spider.
A spider could eat an ant
a spider would win.
spider