Most fossils are found in what type of rock?

A) igneous

B) lava

C) metamorphic

D) sedimentary

Describe a potential safety and environment concern with regard to genetically modified (GM) crops.

One important effect of the lowering of sea levels during Earth's geologic history has been A) the breakup of the continents. B) the loss of fresh water sources. C) the disappearance of inland seas. D) the formation of new coral reefs.

Horses are much larger today than their two-foot tall ancestor, mesohippus. Geologists believe the change in size was the result of changing environments, from tropical forests to a grassland habitat.

Describe the histology of the alimentary canal, particularly to identfy stomach, duodenum and ileum

Which of the statements describes what happens during mismatch repair of DNA? Enzymes identify the recently copied DNA strand, snip out a portion of the DNA strand that contains the mismatched nucleotides, and resynthesize the segment correctly.

True or False In sexual reproduction, two diploid cells can fuse to form a haploid cell

Martinus beijerinck developed the enrichment culture technique to isolate metabolically-distinct microbes from complex natural samples, like soil and water, by manipulating the

The gall bladder secretes bile, which emulsifies fats, and the pancreas secretes digestive enzymes, both into the duodenum. Moreover, the duodenum is the primary site of dietary iron uptake.

Glucose is a large molecule that cannot penetrate the phospholipid bilayer of cells. Instead, glucose enters most cells, such as red blood cells, through special carrier proteins embedded in the surface of the plasma membrane.

Compare/contrast independent and dependent variables.