Genius tell mewhy the blood types bamed as a, b,ab, o ? not a, b, c, d?

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

What causes darkening of the skin as melanin production increases

Which of these statements is false? a. others may notice a problem with a relationship before the people involved. b. the first sign of a problem with a relationship is a feeling of anger. c. damaged relationships can be repaired. d. even good relationships can be damaged.