Category Pages – remove category archives & description

I have noticed that on the main category pages that the name of the category and the description is displayed at the top, just above the posts. I'm wondering if there's a way to set that to no-display. Similarly, on category pages, is it also possible to not display the featured image of the blog post? I have it not displaying on individual post pages using custom CSS but obviously that doesn't apply on the category pages. Thank you!