How are pressure systems are different from fronts. I need this answer right away

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.

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

Where can dna be found in a prokaryotic cell