Actin and myosin are prevented from binding to form a cross-bridge because the protein tropomyosin lays
across the troponin binding site

True or
False

Which of the following describes the rooting reflex? a. a newborn turns the face toward a touch on the cheek in search of food. b. a newborn will automatically suck on objects placed in the mouth like a bottle. c. newborn immersed in water will display something like movement. d. newborn curls a hand around an object that touches the palm

The nutrient facts label on a food package lists the following: iron 50%. what does this figure indicate?

Which of the following is characteristic of the lytic cycle? a) viral dna is incorporated into the host genome. b) the viral genome replicates without destroying the host. c) a large number of phages are released at a time. d) the virus—host relationship usually lasts for generations.