Q: What secures teeth in the mouth? Choices: - plug - muscles - cartilage - socket A:
socket

(Question)
Q: What is the largest mammal on earth? Choices: - tiger shark - water buffalo - giraffe - blue whale A:
(Answer)
blue whale

Ques: Q: Three-prong plugs, circuit breakers, and gfci outlets are safety features that recognize the danger of what? Choices: - heat - magnetism - gravity - electricity A:
Ans: electricity

(Q).
Q: The superior vena cava and the inferior vena cava are veins that return blood lacking what to the heart? Choices: - hemoglobin - carbon dioxide - nitrogen - oxygen A:
(A).
oxygen

Ques:Q: What is the source of energy for photosynthesis? Choices: - air - gravity - carbon - light A:

Ans:light

Ques:Q: In essence, a virus is simply a nucleic acid surrounded by what? Choices: - a membrane coat - a polymer coat - a polypeptide - a protein coat A:

Ans:
a protein coat