What is the root word for especially

Place the steps tor the formation of the enzyme pepsinogen in correct order

Which of the following shows the correct order in which light information travels through the eye? (2 points) lens, pupil, retina, optic nerve pupil, lens, retina, optic nerve pupil, lens, optic nerve, retina lens, pupil, optic nerve, retina

What is any method of measuring the age of an object or event in years, such as using atomic half-life?