This moray eel has a small fish cleaning between its teeth. The eel gets a clean mouth while the cleaner fish gets a nice meal.
A. Mutualism
B. Commensalism
C. Parasitism

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

Select the word from the list that best fits the definition the temperature to which air must cool to be saturated