Which nucleotide in figure 13-1 indicates the nucleic acid in RNA?

1. guanine

2. uracil

3. cytosine

4. adenine

Why is maple sap collected in the spring instead of the fall?

What term is used for the deepest parts of the ocean floor? Ridge Slope Hydrothermal vent Trench

Which kingdom represents both multi & unicellular organisms?

What are the hydrogen and oxygen atoms held together by

The diffusion of what ion, across the neuronal membrane, is responsible for the local currents that depolarize regions of the axon to threshold?

What are some examples and non examples of chemical bonding?

Match the staining techniques with their purpose. A Negative stain such as India ink or Congo red. B The Gram stain C The Ziehl-Neelsen Acid-fast stain D Simple stain with a basic dye E The Schaeffer-Fulton Endospore stain Stain microbes a bright

Sandy puts a paper clip on the table and puts a magnet near the paper clip. The paper clip begins to move. What type of forces are acting on the paper clip?

Which statement is an example of absolute age? 1) Dinosaurs lived a long time ago 2) Trilobites lives before dinosaurs 3) Teachers are old 4) Dinosaurs went extinct 65.5 million years ago

Identify the structure in the cell that will produce atp from the starch building blocks