The instructions for making proteins come
adenine (a)
cytosine (c)
guanine (g)
thymine (t)
uracil (u)
DNA can make exact copies of itself through replication because the nitrogen bases ALWAYS pair originally from

Add me on s.n.a.p.c.h.a.t im bores hmu

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

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating