Q: What is the basic unit of matter? Choices: - nucleus - dark material - neutron - atom A:
atom

(Question)
Q: What causes the changes of puberty? Choices: - glucose - insulin - testosterone - estrogen A:
(Answer)
estrogen

Ques: Q: What is the term for seed plants? Choices: - sporozoans - proteins - germospores - spermatophytes A:
Ans: spermatophytes

(Q).
Q: What are mammals that lay eggs called? Choices: - kangaroos - amphibians - herbivores - monotremes A:
(A).
monotremes

Ques:Q: What makes up the dense outer layer of bones? Choices: - marrow - scales - cartilage - compact bone A:

Ans:compact bone

Question: Q: Which part of the earth is made of the rigid, brittle, solid crust and uppermost mantle? Choices: - troposphere - thermosphere - atmosphere - lithosphere A:
Answer:
lithosphere