Q: What is formed when an element gains one or more electrons? Choices: - cation - ion - neutron - anion A:
anion

(Question)
Q: There is always a slightly negative pressure within what cavity, helping keep the airways of the lungs open? Choices: - anal - cervical - spinal - thoracic A:
(Answer)
thoracic

Ques: Q: In mammals, sound waves are collected by the external, cartilaginous part of the ear called the pinna, then travel through the auditory canal and cause vibration of the thin diaphragm called the tympanum or this? Choices: - speaker drum - microphone drum - head drum - ear drum A:
Ans: ear drum

(Q).
Q: The muscles of the anterior neck assist in deglutition also known as what? Choices: - breathing - staring - pulling - swallowing A:
(A).
swallowing

Ques:Q: Cycloalkanes are hydrocarbons whose molecules are closed rings rather than straight or branched chains. a cyclic hydrocarbon is a hydrocarbon with a ring of these? Choices: - oxygen atoms - hydrogen atoms - barium atoms - carbon atoms A:

Ans:carbon atoms

Ques:Q: What type of animal in the sea spend most of their lives as medusae? Choices: - fish - sharks - whales - jellyfish A:

Ans:
jellyfish