Can I say "comprised of"?

In casual writing, yes — it is everywhere. In careful prose, use composed of or comprises instead.

What's the difference between "comprise" and "compose"?

The whole comprises the parts. The parts compose the whole. Opposite directions.

Quick answer Canonicalizes to Comprise vs. Compose

Is it "comprised of" or "composed of"?

i · AnswerOne line, no lecture

"Composed of." Strict usage treats "comprised of" as an error — the whole comprises the parts directly.

ii · A little moreWhy this is the one to keep

Comprise means contain: "the team comprises five members." Compose means make up: "five members compose the team," or "the team is composed of five members." The phrase "comprised of" jumbles the two — widely used, widely flagged by editors.

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