Q: How metalloids behave in chemical interactions with other elements depends mainly on the number of what, in the outer energy level of their atoms? Choices: - protons - positrons - neutrons - electrons A:
electrons

Q: What is the part of the cardiovascular system that carries oxygen-rich blood away from the heart, to the body, and returns oxygen-poor blood back to the heart? Choices: - peripheral nervous system - somatic system - molecular circulation - systemic circulation A:
systemic circulation

Q: Q: Radioactive decay can give off energy and what else? Choices: - light - ions - atoms - particles A:
A: particles

Question: Q: What would cause warm receptors to signal the hypothalamic thermostat? Choices: - hypothermia - lower temperature - hyperventilation - increased temperature A:
Answer: increased temperature

*Question*
Q: What human traits are controlled by more than one gene? Choices: - mutant traits - autolysis traits - maladaptive traits - polygenic traits A:
**Answer**
polygenic traits

(Q).
Q: Most of the gray matter is on the surface of the brain, surrounding what other type of matter? Choices: - blue - dark matter - corrugated - white A:
(A).
white