An unconformity that separates sedimentary strata that are parallel with one another is called a(n) ____.​

Which hormone surge causes ovulation?

Where are Sertoli (nurse or sustentacular) cells located?

A major barrier to both plant and animal inhabitation of land was ____.

Any lake that formed in during the Pleistocene, as a result of increased precipitation and reduced evaporation rates during that time, is a(n) ____.​

In the image below, which rock is older? (Note that pieces of Rock A are included in Rock B.)

Which statement best describes fermentation?

Any cud-chewing placental mammal with a complex three- or four-chambered stomach, such as deer, cattle, antelope, or camels is a(n) ____.​

These primates are nocturnal, have grasping hands, and include tree shrews, lemurs, lorises, and tarsiers.

Most humans are omnivores (eating meat as well as plants).  Which tooth is best designed to cut food during bite? (like biting the tip of a carrot or banana)