2 3-3-21 (#13) EXIT TICKET: A pesticide was recently sprayed over the trees in the forest to
help reduce the number of insects. When the
caterpillars ate the tree leaves, they grew ill from
the pesticide and died. Explain how the loss of
caterpillars could impact the forest food web.
Use evidence from your food web to support
your claim.

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

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.

Which star has the highest apparent magnitude?