1) Why does Sickle Cell Disease happen? 2) What other
human disease or disorder is caused by a mutation?

3) What is the mutation?

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

What function does a limb serve in each animal how are the limb bones of the four animal similar based on the similarities what can be inferred about the evolution of the poor animals

Which statements explains what the fossil records indicates? check all that apply. a) earth is 4.5 billion years old b) many organisms have become extinct c) mammals have always existed on earth d) mass extinctions have occurred several times on earth e) the amount of water on earth has decreased over time?