What are some exercises one can do to improve health-related fitness?

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.

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

Genetic orders can result when sister chromatids fail to separate properly during which phase is this problem most likely to occur