Q: What specific part of the brain regulates the endocrine system? Choices: - parietal lobe - hippocampus - frontal lobe - hypothalamus A:
hypothalamus

Q: The diffusion of water across a membrane because of a difference in concentration is called? Choices: - absorption - hemostasis - diffusion - osmosis A:
osmosis

Q: Q: Neon, krypton and argon are examples of what kind of gases, which produce light by electroluminescence? Choices: - radiation gases - ionic gases - irradiation gases - halogen gases A:
A: halogen gases

Question: Q: Newly formed what aggregates into threads that form the framework of the clot? Choices: - blood - collagen - plasma - fibrin A:
Answer: fibrin

*Question*
Q: What is a random change in an organism's genes? Choices: - meiosis - infection - accumulation - mutation A:
**Answer**
mutation

(Q).
Q: Water is recycled constantly through which system? Choices: - the hydropshere - the habitat - the troposphere - the ecosystem A:
(A).
the ecosystem