What are the different ways in which animals reproduce sexually? How can their behavior increase their chances of reproducing?

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an

In which state was more than 100 billion tons of coal mined in 2005?

Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area