Q: Maintaining a high metabolic rate takes a lot of what? Choices: - food - calories - fuel - energy A:
energy

(Question)
Q: What is used to date older fossils? Choices: - search engines - litmus testing - electron microscopes - radioactive isotopes A:
(Answer)
radioactive isotopes

Ques: Q: What is our sun's next stage called? Choices: - blue giant - white giant - super nova - red giant A:
Ans: red giant

(Q).
Q: What is the most common cause of dwarfism? Choices: - deformity - hypothyroidism - retinopathy - achondroplasia A:
(A).
achondroplasia

Ques:Q: What forms when an atom gains electrons? Choices: - cations - bonds - crystals - anions A:

Ans:anions

Question: Q: What are created based upon the loss or gain of electrons? Choices: - crystals - atoms - hydrogens - ions A:
Answer:
ions