Answer the following question given this paragraph: Hormonal Regulation of Metabolism Blood glucose levels vary widely over the course of a day as periods of food consumption alternate with periods of fasting. Insulin and glucagon are the two hormones primarily responsible for maintaining homeostasis of blood glucose levels. Additional regulation is mediated by the thyroid hormones. Q: What are the two hormones primarily responsible for maintaining homeostasis of blood glucose levels? Choices: - dopamine and melanin - anabolic and metabolic - insulin and estrogen - insulin and glucagon A:
insulin and glucagon
Answer the following question given this paragraph: Health care has been improving over the most recent centuries. Vaccines were developed that could prevent many diseases ( Figure below ). Antibiotics were discovered that could cure most infections caused by bacteria. Together, these two advances saved countless lives. Q: Antibiotics can cure most infections that are caused by what? Choices: - bacterium - algae - bile - bacteria A:
bacteria
Q: Answer the following question given this paragraph: The vertebrate endoskeleton is made of bone and cartilage. Cartilage is a tough, flexible tissue that contains a protein called collagen. Bone is a hard tissue consisting of a collagen framework that is filled in with minerals such as calcium. Bone is less flexible than cartilage but stronger. A bony endoskeleton allows an animal to grow larger and heavier than a cartilage endoskeleton would. Bone also provides more protection for soft tissues and internal organs. Q: The vertebrate endoskeleton is made of bone and what tough, flexible tissue? Choices: - cuticle - collagen - synovial tissue - cartilage A:
A: cartilage
Question: Answer the following question given this paragraph: Within a nebula, there are varying regions where gravity has caused the gas and dust to clump together. The gravitational attraction of these clumps pull more atoms into the clump. As this accretion continues, the gas pressure increases and the core of the protostar gets hotter and hotter. If the protostar gets dense enough and hot enough, a fusion reaction will ignite and the star lights up. The minimum mass for the formation of a star is about 80 times the mass of Jupiter. A star is a very large, very hot ball of gas which has hydrogen fusing into helium in the core. Stars spend the majority of their life fusing hydrogen into helium. When the hydrogen is nearly used up, the star can fuse helium into heavier elements. Throughout this process, a battle goes on in the core of the star between gravity trying to collapse the star and temperature-produced gas pressure pushing the material in the star outward. During the life of a star, there is a balance between the gas pressure pushing out and gravity pushing in. Q: When the hydrogen is nearly used up, the star can fuse which element into heavier elements? Choices: - carbon - xenon - oxygen - helium A:
Answer: helium
*Question*
Answer the following question given this paragraph: Objects have the same velocity only if they are moving at the same speed and in the same direction. Objects moving at different speeds, in different directions, or both have different velocities. Q: Objects moving at different speeds, in different directions have different what? Choices: - protons - vibrations - electrons - velocities A:
**Answer**
velocities
*Question*
Answer the following question given this paragraph: Did you ever have a picnic ruined by a surprise rainstorm? People often complain when the weather forecast is wrong. But in fact, weather forecasts today are much more accurate than they were just 20 years ago. Scientists who study and forecast the weather are called meteorologists . How do they predict the weather?. Q: What do we call scientists who study and forecast the weather? Choices: - Climate predictors - TV hosts - forecasters - meteorologists A:
**Answer**
meteorologists