Although not well understood, the Cambrian Explosion most likely occurred due to changes in sea level and continental drift.
Answer the following statement true (T) or false (F)
False
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Atrioventricular valves separate:
A. the left atrium from the left ventricle and the right atrium from the right ventricle. B. the right atrium from the right ventricle. C. the left atrium from the left ventricle. D. the right and left ventricles. E. the aorta from the left ventricle.
The separation of genes during the formation of the sperm and egg and the reunion of genes at fertilization is explained by the behavior of chromosomes in a form of cell division called meiosis
a. True b. False Indicate whether the statement is true or false
The human ____________ consists of 33 vertebrae that are cushioned with cartilage disks and provide support and protection to the spinal cord.
A. pectoral gridle B. pelvic girdle C. scapula plate D. rib cage E. vertebral column
Protects RNA from hydrolysis
a. Methylation b. Enhancer activity c. RNA capping d. RNA spliceosome activity e. Reverse transcription