In one year, 35 giraffes are born to a population. What is this number?

A. growth rate

B. emigration

C. immigration

D. birth rate

What information does the National Weather Service produce? Check all that apply. - simple maps - newspaper maps - maps with isobars - maps with isotherms - weather service maps

In E. coli, eight enzymatic steps are involved in the biosynthesis of arginine from glutamate. The synthesis of the required enzymes is subject to control by the ArgD protein, which, on its own, binds weakly to a regulatory sequence just downstream

Which of the following techniques would best be able to determine whether two cell types have differentiated from one another?

How does stomata regulates homeostasis

Which best describes the pH scale? Acids measure below 7. Bases measure below 7. Acids and bases measure above 7. Bases and acids measure at 7.

A maglev train uses powerful magnets to lift the train above the tracks as it moves forward. Such a design reduces what following force. A rolling friction B gravity C air resistance D fluid friction

What are two ways to express probability

Which of these organisms would have the best chance of becoming part of the fossil record?

What do genetic commonalities show?

What is a continental margin?