Prokaryotes are the only organisms able to use atmospheric nitrogen as a nitrogen source
Indicate whether this statement is true or false.
TRUE
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Mass-processed ground meat is a particularly common source of infection with EHEC
Indicate whether the statement is true or false.
Samantha drank a lot of alcohol over many years and now suffers from this fatty degeneration of the liver
A) Large intestine B) Stomach C) Esophageal cancer D) Appendix E) Mouth F) Salivary glands G) Rectum H) Cirrhosis I) Gallbladder J) Small intestine
Which hormone causes calcium to be released from bone into the bloodstream?
A) Boniva B) estrogen C) calcitonin D) parathyroid hormone (PTH)
Cancers that metastasize and invade normal tissues to impede their functions are called
A) benign tumors. B) keratosis. C) malignant tumors. D) in situ cancer. E) neoplasm.