Which of the following amino acids would be sheltered on the inside of a protein? a
Threonine, because it is polar and hydrophilic.
b
Alanine, because it is nonpolar and hydrophobic.
c
Arginine, because it has a positive charge.
d
Aspartic acid, because it has a negative charge.

Are characterized by dry conditions, limited vegetation and wide temperature range. a.) tropical rain forests b.) deserts c.) grasslands d.) none of the above

Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?

Construct at least two possible hypotheses for the student’s experiment.