When water spills on the floor it
makes a puddle. this is because
a. liquids do not have a definite shape and will spread
on the floor.
b. liquids will expand to the volume of their containers.
c. the shape of a liquid is not determined by its
container.
d. liquids have a fixed shape, but not a fixed volume.

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.