NA and RNA share a number of similarities, but they also differ in certain aspects of their structure. Which nitrogenous base is found in RNA but is not found in DNA? uracil adenine thymine cytosine

How do immunoglobulin genes code for a seemingly infinite variety of antibodies?

Which of the following objects might orbit a planet? A. a moon B. an asteroid C. a galaxy D. a star

What scientist discovered electrons in 1897? A) J. J. Thomson B) Ernest Rutherford C) Neils Bohr

Which term describes a chemical reaction in which water is gained? A. Reduction B. Hydration C. Hydrolysis D. Dehydration

What do homologous and vestigial structures suggest about the process of evolutionary change?

The more intense your workout, the more your body relies on carbohydrates to fuel it. Duration and intensity affect the degree to which carbohydrates and fat contribute to overall energy production.

Using a broom to clean sidewalks and driveways is a way to reduce water pollution

The model shows two types of proteins, channels and carriers, allowing the movement of molecules into the cell.

Temperature, pH, and ionic concentrations each play an important role in the proper functioning of enzymes.

What was the purpose of the vinegar in the third trial? a. test the effect of raising pH on enzyme action b. test the effect of lowering pH on enzyme action c. serve as a control d. served no purpose