In the photograph below, two fish are displaying a behavior commonly observed among pairs of rabbitfish. While one has its head down feeding on coral, the other remains upright, alert for predators. This behavior continues to be present in the rabbitfish population because A) this behavior was learned by observing other fish species B) both fish could not fit into the small spaces in the coral C) this behavior increases their chance of survival D) the fish species needed to become alert to survive

1.the evidene of the reaction

2.yes

3.yes

no i don't feel that humans have oversubscribed some medications

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.