How many neutrons does an element have if it's atomic number is 49 and it's mass number is 150?

DNA polymerase I, from E. coli, has three different catalytic sites. Which of the following is NOT one of them? A. RNA-dependent RNA polymerase B. RNA-dependent DNA polymerase C. DNA-dependent RNA polymerase D. DNA-dependent DNA polymerase

7. When is the energy stored in ATP released?

Name two symbiotic relationships that bacteria have.

Characteristics of the cell wall include which of the following? Select all that apply.

This lack of sensitivity is termed antibiotic resistance. How is antibiotic resistance an adaptation

How are all living thing made of cells

Which is am example of an internal stimulus? A) an increase in the amount of water available to a plant B) an artificial light attracts insects C) a decrease in oxygen levels in the blood during exercise D) a sudden change of air temperature

How dose one determine when an ecosystem is in balance

How does respiratory system relate to respiration making ATP?

What is the largest group of reptiles that ever lived?