please help, im in a really bad place rn and nobody ever helps. im about to fail the grade :( A train travels at a speed of 47mph and travels a distance of 323 miles. How long did it take the train to complete its journey

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

How can you tell the difference between rough er from smooth er?

What is the main fuel source for the work of the cell