The bacteria Aliivibrio fischeri luminesce when the population reaches about 1011 bacteria per mL of water. Identify the signal and the response in this scenario. a. Luminesce is the signal and increased population is the response.
b. A population of 10^11 bacteria per mL of water is the signal and luminesce is the response.
c. Water is the signal and a population of 10^11 bacteria per mL is the response.
d. Aliivibrio fischeri is the signal and luminesce is the response.

emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.