As a volcano erupts, it produces lava. As this lava flows, it cools down and hardens, forming a rock. How could you classify this rock?

nvestigator A conducts research on emphysema using biospecimens from human subjects. The consent form indicates that the research will focus exclusively on emphysema. Investigator B wishes to use the biospecimens for research on lung cancer.

What happens to hormone levels during ovulation

What structure is found on a rough E. R that is not on the smooth E. R?

What are the four differences between plant and animal cells?

Which is the class of cnidarian that is characterized by having a dominant medusa stage and four gastric pouches?

Elephant seals are abundant in their population size but they have low genetic diversity within their species due to overhunting by humans in 1890s. Why might the survival of this species be threatened in the future?

What kind of phytoplankton is Noctiluca? Describe its physical features. Where does it live, and what does it eat? What special ability does the Noctiluca have? What is this special ability called? How does this special ability happen scientifically?

A cell that requires a lot of energy might contain large numbers of what organelle

Considering the carbon cycle, which of the choices would result if a large area of forest were burned?

What is the term used to describe relatively small areas with unusually high concentrations of species found there and nowhere else, including many species in high risk of extinction? These areas receive the focus of global conservation efforts.