(Question)
Q: The only invertebrates than can fly belong to what broad group, which is highly successful? Choices: - spiders - birds - bats - insects A:
(Answer)
insects

(Question)
Q: What is necessary in a person who wishes to play wind instruments? Choices: - strong hands - vocal cords - powerful lips - healthy lungs A:
(Answer)
healthy lungs

(Question)
Q: The process of producing mature sperm is called what? Choices: - spermatosis - glycogenolysis - ketoacidosis - spermatogenesis A:
(Answer)
spermatogenesis