(Q).
Q: What term describes the splitting of the nucleus of an atom into two smaller nuclei? Choices: - nuclean fusion - atomic reaction - critical fission - nuclear fission A:
(A).
nuclear fission

(Q).
Q: What type of disorders are caused by mutations in genes or abnormal numbers of chromosomes? Choices: - thyroid disorders - immune system disorders - emotional disorders - genetic disorders A:
(A).
genetic disorders

(Q).
Q: Why are living things considered to be renewable? Choices: - they inherit traits - they evolve - they decompose - they reproduce A:
(A).
they reproduce