Q: The simplest example of what type of 'organ system' is the gastrovascular cavity found in organisms with only one opening for the process? Choices: - cardiovascular - respiratory - nervous - digestive A:
digestive

(Question)
Q: What type of energy is possessed by autumn leaves before they fall? Choices: - mechanical energy - kinetic energy - radioactive energy - potential energy A:
(Answer)
potential energy

Ques: Q: When represented by a single letter dominant alleles are represented by what case letter? Choices: - mixed letters - numeral - lowercase - uppercase A:
Ans: uppercase

(Q).
Q: What are alloys that are mostly composed of mercury known as? Choices: - halogens - fillings - compounds - amalgams A:
(A).
amalgams

Ques:Q: Hazardous waste is material that is toxic, chemically active, corrosive, or what? Choices: - inactive - decomposed - organic - flammable A:

Ans:flammable

Ques:Q: What is a thick, dark brown or black liquid found in rock layers of the earth's crust? Choices: - propane - fossil fuel - coal - oil A:

Ans:
oil