6) which is a standard metric base unit, correctly matched with what it measures?
a) kelvin: time
b) second: time
c) meter: volume
d) gram: temperature

What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

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