How many necleotides equals 1 amino acid

Iwill give brainiest to first person who gets it ! what are 3 basic types of interactions we see in an ecosystem?

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

What if the yeast were extremely active and produced more than 100ml gas. would you know? why/why not