47. what adaptation helps freshwater mussels survive in flowing water?\n a) swimming ability\n b) strong…

47. what adaptation helps freshwater mussels survive in flowing water?\n a) swimming ability\n b) strong byssal threads\n c) camouflage coloring\n d) floating air sacs\n48. which technology is commonly used to detect and monitor earthquakes?\n a) radar systems\n b) weather satellites\n c) seismometers\n d) gps trackers

47. what adaptation helps freshwater mussels survive in flowing water?\n a) swimming ability\n b) strong byssal threads\n c) camouflage coloring\n d) floating air sacs\n48. which technology is commonly used to detect and monitor earthquakes?\n a) radar systems\n b) weather satellites\n c) seismometers\n d) gps trackers

Answer

Brief Explanations:

For question 47, freshwater mussels attach themselves to surfaces in flowing - water using strong byssal threads. They are not strong swimmers, camouflage coloring doesn't directly help with staying in place in flowing water, and they don't have floating air sacs for this purpose. For question 48, seismometers are specifically designed to detect and measure ground - motion caused by earthquakes. Radar systems are for detecting objects in the air or on the ground based on radio waves, weather satellites monitor weather conditions, and GPS trackers are for location tracking.

Answer:

  1. B. Strong byssal threads
  2. C. Seismometers