Who first discovered DNA and named it “nuclein.”

Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?

According to the cladogram, which organisms have roundworms as a common ancestor?

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone