Which stomach enzyme is primarily responsible for breaking down proteins into smaller peptides?

Which scale is used to estimate wind speed based on observed sea or land conditions without instruments?

Which common antibiotic was first discovered from a mold by Alexander Fleming?

Which everyday device converts alternating current into direct current for charging electronic devices?

Which vitamin deficiency commonly causes the disease scurvy?

Which muscle separates the chest cavity from the abdominal cavity and assists in breathing?