The scientist added a drop of distilled water to some fresh blood on a microscope slide. thered blood cells absorbed water. some of them swelled and burst. she then looked at onion cells under a microscope. she added a drop of distilled water to theslide. none the cells burst. what part of an onion cell prevents it from bursting?

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.

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?