19. which is not true of animals? they have coordinated movement. they develop a blastula. they make their own food. they eat dead or living organisms.

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h, o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute