Which contribution of the Maya used tree bark to keep track of rituals? (4 points) Group of answer choices

Observatories

Stepped pyramids

Codices

Stelae

everbfep refu eriufeipu hfprheoiergewrr

they became hereditary because there weren't many jobs for people in lower classes

i think i will need more detail to answer if this is a specific question on a test, but technology advancements are good for many industries, such as medicine or food industries, new technology could us in medicine in ways such as new scanners to tell us more about our bodies or new cures or vaccines for diseases.