1. What is a total solar eclipse? How are the sun, earth and moon aligned when a total eclipse occurs.
2. What is a total lunar eclipse? How are the sun, earth and moon aligned when a total eclipse occurs.
3. How are they different?

(sorry it's long, I have to make a flipgrid on it.)

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.