Proteins are made up of chains of simple molecules called

Which codon is the code for the amino acid histidine (his)?

Imagine a rocket launching from earth and travelling to the moon. in which order would the rocket pass through the layers of the atmosphere? thermosphere, mesosphere, stratosphere, troposphere troposphere, mesosphere, stratosphere, troposphere thermosphere, stratosphere, mesosphere, troposphere troposphere, stratosphere, mesosphere, thermosphere

What are the student's observations and inferences before he starts his investigation?