Classifications today are made on the basis
a. the flower of plants
b. ways that animals reproduce
c. likenesses
d. similarities and differences

urgent: taking a quiz!

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

Iwanna go do something with my ideas? ?