Which of the following statements are true about air? 1. Air can be compressed (pushed into a smaller space) 2. Air has mass 3. Air takes up space. 4. Air does not have weight. 5. Air is a mixture of oxygen, nitrogen, and other gases. 6. Air pressure is greatest on the top of a mountain.

How are viruses and bacteria different?

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger