Answer the following question given this paragraph: Q: What is the process of action potentials in myelinated axons jumping between the nodes of ranvier called? Choices: - photoreactive conduction - saltatory movement - pinworm conduction - saltatory conduction A:
saltatory conduction
Answer the following question given this paragraph: If particles do not have enough kinetic energy to overcome the force of attraction between them, matter exists as a solid. The particles are packed closely together and held rigidly in place. All they can do is vibrate. This explains why solids have a fixed volume and a fixed shape. Q: What state of matter exists if particles do not have enough kinetic energy to overcome the force of attraction between them? Choices: - plasma - liquid - gas - solid A:
solid
Q: Answer the following question given this paragraph: The veins that return oxygen-poor blood to the heart are the superior vena cava and the inferior vena cava . The pulmonary veins return oxygen-rich blood from the lungs to the heart. The pulmonary veins are the only veins that carry oxygen-rich blood. Q: The superior vena cava and the inferior vena cava are veins that return blood lacking what to the heart? Choices: - hemoglobin - carbon dioxide - nitrogen - oxygen A:
A: oxygen
Question: Answer the following question given this paragraph: Q: Engaging in relatively simple behaviors helps maintain a nearly constant body temperature for organisms classified as what? Choices: - photophores - placoderms - endotherms - ectotherms A:
Answer: ectotherms
*Question*
Answer the following question given this paragraph: Carbon dioxide levels in the atmosphere are increasing. Fossil fuel burning is increasing. The rise in fossil fuel burning is increasing the CO 2 in the atmosphere. Q: What gas is released into the atmosphere when fossil fuels are burned? Choices: - hydrogen - glucose - helium - co2 A:
**Answer**
co2
Q: Answer the following question given this paragraph: The volume of an irregularly shaped solid can be measured by the displacement method. You can read below how this method works. For a video on the displacement method, go to this URL: http://www. youtube. com/watch?v=e0geXKxeTn4 . Q: An solid object with an irregular shape can be measured via what method? Choices: - radiation - vibration - variation - displacement A:
A: displacement