Answer:
Acid
Explanation:
Because water is neutral and has a pH level of 7, and anything below 7 on a pH scale is acidic, solute X is an acid because it lowered the pH level.
Answer: People were probably not getting vaccinated or the bacteria became immune to the vaccine.
Explanation: yw plz mark brainliest i need one more (:
Answer:
dragon flies are.insects birds are birds dragonflies are small birds are big
They mix up the genes causing the organism to have more genetic variation
