PLEASE HELP URGENT QUESTION NEEDED ASAP PLEASE BIOLOGY QUESTION:
Generate an argument about whether or not viruses should be considered living or nonliving. Use at least two pieces of data to back up your claim.

Look at the photo of the leaf, which term best describes this leaf ? a-simple. b-parallel. c-lobed. d-tooth.

Regarding the trichromatic theory of color vision, which statement is  most  accurate?               a.  specialized cells in the retina are sensitive to blue-violet, green, and yellow-red.    b.  specialized cells in the retina engage in a process called feature detection.    c.  the theory maintains that receptor cells are grouped in pairs, such as black-white.    d.  the theory us understand why we see afterimages of different colors. 

Why is a strong sense of taste so important for open ocean predators like oceanic whitetip sharks ?