Which of the following is not a characteristic of living things?
a. one or more cells
b. complex chemical activity
c. reproduction
d. nuclear reactions

If someone could do the first couple, just so i can see how it's done that would be great! 20 points. complete a dichotomous key for the 10 leaves on the common leaves sheet. the chart provided here allows for 11 pairs of statements. depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -