4. Fill in the blanks: What is the best unit for a scientist to use to measure each of the following? (meter, centimeter, kilometer, light-year) a. Distance between Cincinnati and Columbus
b. Height of the Empire State Building
c. Length of an oak leaf
d. Distance between two stars

There are six elements that make up most of the human body. which of the following is not one of these six elements?

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii