Fill in the blank below with the vocabulary word that best completes the sentence.
Natural selection leads to
, a process of change in a population over time.

Glucose is a form of sugar found in the blood cells use glucose as a source of energy, but too much or too little can cause serious health issues so, the body uses the hormone insulin to regulate glucose n the blood insulin maintain glucose levels in the blood if blood glucose lovels got very high, what would you expect to see happen to insulin levels?

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

The offspring of a black cat and a white cat is a gray cat, it has the genotype bw if a black cat mates with a gray cat the chance that the offspring is white will be what percent?