(Question)
Q: The fluid surrounding cells is hemolymph in insects and other animals with an open type of what system? Choices: - lymphatic - vascular - pulmonary - circulatory A:
(Answer)
circulatory

(Question)
Q: What is formed when an enzyme binds its substrate? Choices: - vessel - substrate complex - nucleus - substrate complex - lock and key model - enzyme - substrate complex A:
(Answer)
enzyme - substrate complex

(Question)
Q: An organism that carries pathogens from one individual to another is called what? Choices: - germ cell - virus - host - vector A:
(Answer)
vector