All cells have a nucleus with DNA to carry genetic information, a plasma membrane which serves as a selective barrier, and mitochondria for the generation of energy.

           Amino acids are linked together by ____ bonds.

 Populations of all organisms change from one generation to the next because their DNA changes over time. This is known as ____.​

Are saturated or unsaturated fats generally solids at room temperature? Explain why there is a difference in the fluidity of these two related molecules.

Which of the following describes RNA.

Changing the number of ________________, creates an isotope of the element. 

           Amino acids are linked together by ____ bonds.

Sodium has one valence electron in its third energy level. To reach a stable energy configuration, sodium will tend to____.​

A student hypothesizes that green algae will grow fastest when exposed to blue light. To test this hypothesis, the student should design an experiment with which independent variable? 

Are saturated or unsaturated fats generally solids at room temperature? Explain why there is a difference in the fluidity of these two related molecules.