At the equator, one degree of latitude is approximately equal to a. the tropic of cancer b. one degree of longitude c.1,000 kilometers of longitude d. a great circle e. one second of angular arc

Football players often sustain lateral blows to the extended knee. which of the ligaments is (are) damaged as a result? a. suprapatellar b. oblique popliteal and extracapsular ligament c. medial collateral, medial meniscus, and anterior cruciate d. arcuate popliteal and the posterior cruciate

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%