What is the amount of protein if the protein synthesis contains 100 aa, each molecule contains 20 different aa?

Which group of chordates does  notpossess true backbones?                 a.  birds      b.  frogs and toads      c.  lampreys      d.  crocodilians

Graphs you see question 5 options: the change in data over time the relationship between different dependent variables the relationship between the independent variable and the dependent variable/s the relationship between different independent variables

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?