Question

No explanation just answer please.

36. Which connective tissue has a fluid matrix? A. adipose B. blood C. cartilage D. dense connective tissue E. loose connective tissue 37. What feature of cardiac muscle helps the cells coordinate their contraction as single unit? A. fused cells with multiple nuclei B. covalent bonds between actin and myosin molecules C. intercalated disks rich in gap junctions D. large numbers of motor neurons 38. A scientist is trying to coax stem cells to differentiate into muscle to use as a therapy for muscular dystrophy. He looks at his Petri dish and is excited to see the cells contracting! The cells appear striated and multinucleate. What type of muscle are they? A. cardiac muscle B. smooth muscle C. involuntary muscle D. skeletal muscle 39. Some hummingbirds go into a type of dormancy that lasts less than 24 hours. What type of dormancy is that? A. Hibernation B. Estivation C. Torpor D. Sleep 40. Low body temperature triggers adaptive responses to conserve heat. Once the integrating center detects that body temperature has risen, it will decrease these responses. What does this exemplify? A. adaptation B. negative feedback C. positive feedback D. acclimatization 41. What are the cells that are specialized to produce and conduct electrochemical impulses called? A. neurons B. dendrites

Answer 1

36. B) Blood. Blood and lymph are two examples of connective tissues with fluid matrix.

37. C) intercalated disks rich in gap junctions.

38. D) skeletal muscle.

39. C) Torpor.

40. B) negative feedback.

41. A) neurons.