Explain why and how the polar covalent bonds found in water molecules are responsible for water's ability to dissolve many substances, particularly ionic compounds such as salt.

What geologic event most likely caused the folding and faulting of these layers?

True or false? Teeth called incisors are used to puncture and tear the flesh of prey.

How can you tell which is the highest elevation on a topographic map

How many cells do bacteria have

Choose all the equations that show a direct variation between x and y when solved for y. A. 3/4y=6x B. y=2/5x-2/5 C. y=27x D. 2y=x

Why isn't mitochondrial DNA a unique identifier? a. Mitochondrial DNA is inherited through the maternal lineage. b. All female offspring inherit their mother's mitochondria, and therefore the same mitochondrial DNA. c.

At what time of day would stomata be closed and why

What made niches available for the radiation of mammals?

Which of the following may add salt to the ocean waters

A restriction enzyme is that complete the sentence