The Silurian period occurred A. during the Hadean eon. B. after the Permian era. C. before the Neogene period. D. during the Mesozoic era.

A nurse is talking about an essential mineral that is stored in human bone. which mineral is the nurse describing?

What evidence supports the idea that an evolutionary relationship exists between two hominid species? (A) Bone density of the species. (B) Mitochondrial DNA of the species (C) Number of teeth of the species (D) Geographical location of a species

What process do the arrows for oxygen going in and water coming out represent in the Figure 9-2 diagram of the mitochondria?

There are several theories of emotion. which one says that the frontal lobes interpret the body's reaction to stimuli?

what process of the carbon cycle is likely causing the increase in carbon dioxide levels shown in the graph above

Which statement about the cell membrane is true? A. It contains cellulose and sugars that are involved in communication. B. It is present in animal cells only. C. It is rigid and elastic for supporting the cell's shape. D.

Hailey needs to identify internal costs so she can price her product accordingly. Which cost will be part of Hailey's calculation? A. cost of endangering species B. cost of deforestation C. cost of air pollution D. cost of disposing by-products E.

What is the main difference between prokaryotic and most eukaryotes cells? A. Eukaryotic cells from multi-cell tissues, Prokaryotic cells are single cell. B. Eukaryotic cells from single cell, Prokaryotic cells are multi-cell tissues. C.

List (A) the primary materials necessary for and (B) The materials produced by photosynthesis

How is fermentation different from cellular respiration?