The ratio of uranium-238 to lead-206 in a rock sample can be used to determine the samples

A. Absolute Age

B. Relative Age

C. Radioactivity

D. Mass

The short pieces of dna formed on the lagging strand are called

The division of the peripheral nervous system that plays a significant role in motivation and emotion is the

Why do some atoms gain or lose electrons to form ions

Which organelles stores information and is considered the control center of the cell?

A prophage is a Choose one: A. phage genome integrated into a host genome. B. bacterial virus particle that has not yet infected a cell. C. circular phage genome that promotes cell lysis. D. virus that promotes tumor growth in plants.

Explain griffith's experiment and the concept of transformation

During what process in the cell cycle does one cell become two cells?

All BUT one description applies to the structure of RNA. That is A) four nitrogenous bases. B) double-stranded molecule. C) contains a phosphate group. D) 5-carbon sugar called ribose.

Although a fetus is relatively protected in its mother's womb, a number of different toxins can harm the fetus. These include lead, mercury, glycol ethers, and many other substances. How do toxins usually reach the developing fetus

What is an abiotic factor of a marine ecosystem? A). Food produced B). Temperature change as you go deeper into the ocean C). Reproduction of animals