A ________________________________________ pathogen must attach itself to a cell before it invades the cell
Fill in the blank(s) with correct word
viral
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What structure transports bile from the liver to the bile duct?
A) Hepatopancreatic duct B) Cystic duct C) Common hepatic duct D) Accessory pancreatic duct
You are dissecting a species of amphibian that has just been discovered in the rainforest. You find a blood vessel where the blood travels at a low pressure and velocity. If the frog is in an upright position, blood flow through this vessel would also be against gravity. Anatomically, what do you expect of this blood vessel?
A. Valves that allow only one-way flow of blood B. Large wall to lumen ratio C. A thick muscular wall D. A high degree of compliance E. All of the answers are correct
DNA replication is called semiconservative because ________
A) each daughter DNA consists of one new chromatid and one old chromatid B) each daughter cell receives one new chromatid and one old chromatid C) each daughter cell receives one new helix and one old helix D) each daughter DNA consists of one new nucleotide and one old nucleotide E) each daughter DNA consists of one new helix and one old helix
Ethnic differences in skin color are primarily caused by differences in ________
A) the quantity of melanin produced B) UV radiation exposure C) the number of melanocytes D) the quantity of hemoglobin carried in the blood E) the number of keratinocytes