In order for organisms to stay alive and continue their species, they must overcome many challenges. which of these is not one of the three challenges of life? question 1 options: getting energy reproducing regenerating staying healthy

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)

What is the coefficient of kinetic friction μk between the block and the tabletop?

The ph is the a. independent variable b. the dependent variable c. control group