In which ways are rna and dna different?
a. rna has ribose sugar, dna has deoxyribose sugar
b. rna has uracil, dna has thymine
c. rna is single-stranded, dna is a double-helix
d. all of the above

Which of the following is an advantage of solar energy?

What are they five steps of cloning?

The steps in the formation of extrusive igneous rocks are listed below in an incorrect order: 1. rock melts due to high temperature. 2. rock is buried deep under earth's surface. 3. magma is forced out of earth's surface during volcanic eruption. 4. lava cools and crystallizes to igneous rock. which of these best shows the correct order of steps in the formation of extrusive igneous rocks? 1, 3, 4, 2 2, 1, 3, 4 3, 4, 2, 1 4, 2, 1, 3