What is the greatest challenge to organisms that live in a desert biome?

a. hot temperatures

b. water loss

c. sandy soil

d. strong winds

A nurse administers two serial intramuscular injections of betamethasone to a woman at 32 weeks' gestation who has been admitted in preterm labor. the nurse knows that this medication is given to accomplish what purpose?

Recall what portion of Earth is included in the biosphere

Which of the following statements is true? Evolution is like a ladder, with humans at the top and unicellular organisms at the bottom. Macroevolution cannot be observed directly. It is based on fossils and historical evidence.

Write a summary statement for unsaturated fats including whether they are solids or liquids at room temperature and whether they have all single carbon-to-carbon bonds or at least one double carbon-to-carbon bond.

What would go wrong if a cell did not make a second copy of all of its DNA before the cell divided into two daughter cells?

Of the 30000000 species on earth, how many are lost each hour?

What are two molecules that carry energy in a biochemical pathway

Which of the following causes a tumor to form

Why might a water table drop

How did the 1898 discovery of blood types affect society?