Ques: Q: What component of cells is present in plant and bacterial cells but not animal cells? Choices: - nucleus - plasma - mitochondria - cell wall A:
Ans: cell wall

Ques: Q: The sum of the masses of the atoms in the formula is referred to as what? Choices: - nucleus mass - magnetic mass - atomic mass - molecular mass A:
Ans: molecular mass

Ques: Q: What is the ability to cause changes in matter? Choices: - force - hydrogen - pressure - energy A:
Ans: energy

Ques: Q: Antacids are bases that neutralize what in the digestive tract? Choices: - fats - hormones - salts - acids A:
Ans:
acids