How often does an el niño event occur?

a. about every other year

b. every 10 years

c. about every 2 to 3 years

d. about every 3 to 7 years

What inhibits the growth of Eubacteria? a.) antibiotics b.) polymerase c.) halophiles d.) metabolites

Watson and crick figured out what process

Which three statements correctly describe the process that takes place before a mature mrna exits the nucleus?

A tear in the right rib muscles has caused the muscles to spasm, meaning they are locked in a contracted state. How would this affect breathing in the right lung? It would prevent inspiration. It would prevent expiration.

Are there more adults (18 or over) than kids in this world?

Most of cellular respiration take place in what

An ocean trench forms when?

The fact that a strain of yeast with a certain defective gene can use the human version of the gene to repair itself is evidence that yeast and humans

What is the difference between a meteor and a meteorite? A meteor has more mass A meteorite reaches Earth and has not burned up A meteorite orbits the sun and a meteor does not A meteorite glows

Which of these was NOT characteristic of the first cells on Earth? A) anaerobic B) prokaryotic C) single-celled D) contained organelles