Consider the shape and structure of the virus in the diagram. A helical virus is shown. Which viral shape is shown? complex polyhedral helical enveloped

Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

What are some natural processes that represent physical and chemical changes?