What process uses analysis of the decay of atomic particles to determine exact age? 1- Radioactive dating
2- Law of superposition
3- Relative dating
4- Index fossils

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Across of blue x blue (both heterozygous) would result in