Q: A mineral can be made of an element or a? Choices: - Sediment - component - cell - compound A:
compound

(Question)
Q: What do halogens require electrons to achieve? Choices: - coupling - formation - fusion - octet A:
(Answer)
octet

Ques: Q: When an electron transitions from an excited state to a less excited state, or ground state, the difference in energy is emitted as a what? Choices: - neutron - nucleus - quark - photon A:
Ans: photon

(Q).
Q: The primary hormones derived from lipids are what? Choices: - amino acids - melatonins - antibiotics - steroids A:
(A).
steroids

Ques:Q: What rod provides stiffness to counterbalance the pull of muscles? Choices: - vertebrae - spinal cord - mesoderm - notochord A:

Ans:notochord

Ques: Q: Because charges must have an unbroken path to follow, electric current cannot flow through a material unless it forms what? Choices: - complete loop - closed area - total loop - closed loop A:
Ans:
closed loop