Carbon-14 has a half life of 5,730 years. If 8,000 grams of Carbon-14 is the starting amount, how much would be left after 22,920 years?

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

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

Explain why the plants cortex would serve as the best food source for animals