What do you observe on the filter paper strip after 2 to 3 hours?

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

How do you lengthen a pattern piece? (family and consumer science, sewing)