Vitamin b12 is essential for the proper functioning of which type of cells?

What allows scientists to directly determine the age of the fossil itself

Red maple tree seeds are dispersed by the wind. This species of tree can be found in fields, woods, and even wetlands. What type of distribution applies to this example?

Common commercial benefits of microorganisms include synthesis of

Both viruses and living cells can cause intestinal diseases. Giardia Lambía is a single called organism that releases toxins that cause diarrhea and vomiting. A norovirus is a common cause of viral gastroenteritis, which has similar symptoms.

In which kind of solution would water move from the solution into the cell? (making it swell) A hypotonic B hypertonic C isotonic D hydrotonic

Which area of the stomach directly adjoins the small intestine?

Athletes foot is caused by

Compare the characteristics of rivers and streams.

How does an f + cell differ from an hfr cell? how does an f + cell differ from an hfr cell? hfr strains have the f plasmid integrated into the chromosome. f + cells have no plasmids. hfr cells cannot perform conjugation.

How can the environment be organized into levels from simple to complex?