Max pulled a wagon for 15 meters with a force of 20 Newtons. Nicola pulled
the wagon for 12 meters, and used a force of 22 Newtons. Which student did
the most work?

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil