Writing Prompt: Earth's core is not directly observable by humans. According to the article, how
did scientists use a model to understand properties of the planet's core? How did
this model improve on previous theories about the structure of the Earth's core?

Select the word from the list that best fits the definition process that takes place at mid-ocean ridges sea floor spreading continental drift magnetic reversal magnetic minerals fossils

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?

Animals such as pronghorn antelope, bison ans badgers dot to the landscape. where are these animals located?