Answer the following question given this paragraph: Symbiosis is a close relationship between two species in which at least one species benefits. Q: What is a close relationship between two species in which at least one species benefits? A:

OPTIONS:
- endosymbiosis
- parasitism
- morphogenesis
- symbiosis

Answer: symbiosis

Answer the following question given this paragraph: Mariana Ruiz Villarreal (User:LadyofHats/Wikimedia Commons), modified by Hana Zavadska. The sodium-potassium pump uses active transport . Public Domain. Q: Unlike the passive form, the sodium-potassium pump uses what type of transport? A:

OPTIONS:
- High
- Low
- phase
- active

Answer: active

Answer the following question given this paragraph: Our Sun is a star , a sphere of plasma held together by gravity. It is an ordinary star that is extraordinarily important. The Sun provides light and heat to our planet. This star supports almost all life on Earth. Q: What is a buildup of electric charges on objects? A:

OPTIONS:
- wattage
- potential
- conduction
- static

Answer: static

Answer the following question given this paragraph: All materials have some resistance, but certain materials resist the flow of electric current more or less than other materials do. Materials such as plastics have high resistance to electric current. They are called electric insulators. Materials such as metals have low resistance to electric current. They are called electric conductors. Q: Materials such as metals have low resistance to electric current, what are they called? A:

OPTIONS:
- electric channel
- electric channels
- electric conduit
- electric conductors

Answer:
electric conductors