6. Emily made an experiment to test if different types of water would cause a plant to grow at the same rate. She set up three plants of the same size (each was in same type of pot and on same window) and watered each with
three different types of water, bottled water, sugar water, and salt water. Each plant was watered every other day
with 20 ml of water.
Which part of the experiment was the independent variable?

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.

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.

This is a membrane-bound, disk-shaped compartment inside chloroplasts and cyanobacteria. they are the site of the light-dependent reactions of photosynthesis.