One hypothesis about the origin of the building blocks for life is that they were

A. made inside meteors. B. formed when lightning struck water.

C. started by the RNA in the ocean. D. brought to Earth by meteorites.

1. Imagine a hypothetical situation where the membrane potential of a cell during resting state would be positive (+45 mV). What would you expect to happen during the influx of chloride?

Analyze the role of DNA finger - printing in criminal investigations.

When weather conditions are disrupted by El Nino how does this affect ocean nutrients

Maria is concerned because she has been exposed to a small amount of radiation during an X-day. What is her doctor most likely to tell her!

The advantages of vascular tissue over non vascular tissue are evident in A. Whether organisms have alternation of generations B. An organism's size and complexity C. The number of individual offspring produced by each organism D. All of the above

What is the name of the enzyme that adds new nucleotides to build mrna

If two people want to know the chances of their child have a certain genetic disorder, the parents must know their

Which of the following constitutes the primary structure of a protein? A. The folding of a polypeptide chain B. The linear sequence of amino acids in a polypeptide chair C. The polypeptide chains stacked on top of each other D. A pleated sheet E.

Most food chains have no more than six organisms. why is there a limit to the number of links in a food chain? a. animals at the end of the food chain would have too much food available. b.

What was the most significant conclusion that gregor mendel drew from his experiments with pea plants?