Which of the following would be an example of a trophic relationship? Select all that apply. a person’s consumption of fish as dietary protein
small marine life feeding on the algae and plankton that have descended to the ocean floor
large fish consuming small anchovies
photosynthetic plankton respiring oxygen into the ocean

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?