Prokaryotes are the only organisms able to use atmospheric nitrogen as a nitrogen source

Indicate whether this statement is true or false.


TRUE

Biology & Microbiology

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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.

Biology & Microbiology

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

Biology & Microbiology

Which hormone causes calcium to be released from bone into the bloodstream?

A) Boniva B) estrogen C) calcitonin D) parathyroid hormone (PTH)

Biology & Microbiology

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.

Biology & Microbiology