Q: Answer the following question given this paragraph: On the ventral side of the embryonic disc, opposite the amnion, cells in the lower layer of the embryonic disk (the hypoblast) extend into the blastocyst cavity and form a yolk sac. The yolk sac supplies some nutrients absorbed from the trophoblast and also provides primitive blood circulation to the developing embryo for the second and third week of development. When the placenta takes over nourishing the embryo at approximately week 4, the yolk sac has been greatly reduced in size and its main function is to serve as the source of blood cells and germ cells (cells that will give rise to gametes). During week 3, a finger-like outpocketing of the yolk sac develops into the allantois, a primitive excretory duct of the embryo that will become part of the urinary bladder. Together, the stalks of the yolk sac and allantois establish the outer structure of the umbilical cord. The last of the extra-embryonic membranes is the chorion, which is the one membrane that surrounds all others. The development of the chorion will be discussed in more detail shortly, as it relates to the growth and development of the placenta. Q: On the ventral side of the embryonic disc, opposite the amnion, cells in the lower layer of the embryonic disk (the hypoblast) extend into the blastocyst cavity and form this? A:

OPTIONS:
- embryo sac
- neural sac
- algae sac
- yolk sac

A: yolk sac

input: OPTIONS:
- Sediment
- component
- cell
- compound Now, answer this question: Answer the following question given this paragraph: A mineral is a solid material that forms by a natural process. A mineral can be made of an element or a compound. It has a specific chemical composition that is different from other minerals. One mineral's physical properties differ from others'. These properties include crystal structure, hardness, density and color. Each is made of different elements. Each has different physical properties. For example, silver is a soft, shiny metal. Salt is a white, cube-shaped crystal. Diamond is an extremely hard, translucent crystal. Q: A mineral can be made of an element or a? A:
A:
output: compound

Answer the following question given this paragraph: Materials that are good conductors of thermal energy are called thermal conductors. Metals are very good thermal conductors. Q: Materials that are good conductors of thermal energy are called? A:

OPTIONS:
- atmospheric conductors
- thermal inductors
- atmospheric inductors
- thermal conductors

Answer: thermal conductors

Problem: OPTIONS:
- magnetism
- variation
- motion
- gravity
Q: Answer the following question given this paragraph: You are already very familiar with Earth's gravity. It constantly pulls you toward the center of the planet. It prevents you and everything else on Earth from being flung out into space as the planet spins on its axis. It also pulls objects above the surface, from meteors to skydivers, down to the ground. Gravity between Earth and the moon and between Earth and artificial satellites keeps all these objects circling around Earth. Gravity also keeps Earth moving around the sun. Q: What force pulls people and objects toward the center of the earth? A:
Answer: gravity

Problem:OPTIONS:
- to find a mate
- for protection
- to keep warm
- to attract prey

Answer the following question given this paragraph: Anglerfish. This anglerfish lives between 1000 and 4000 meters below sea level. No sunlight penetrates to this depth. The rod-like structure on its face has a glow-in-the-dark tip. It is covered with microorganisms that give off their own light. The fish wiggles the structure like a worm to attract prey. In the darkness, only the rod-like worm is visible. Q: What do anglerfish use their glow-in-the-dark, rod-like structure for? A:
****
A: to attract prey

Problem:OPTIONS:
- secretion
- absorption
- photosynthesis
- glycolysis

Answer the following question given this paragraph: Outcomes of Glycolysis Glycolysis starts with glucose and ends with two pyruvate molecules, a total of four ATP molecules and two molecules of NADH. Two ATP molecules were used in the first half of the pathway to prepare the six-carbon ring for cleavage, so the cell has a net gain of two ATP molecules and 2 NADH molecules for its use. If the cell cannot catabolize the pyruvate molecules further, it will harvest only two ATP molecules from one molecule of glucose. Mature mammalian red blood cells are not capable of aerobic respirationthe process in which organisms convert energy in the presence of oxygenand glycolysis is their sole source of ATP. If glycolysis is interrupted, these cells lose their ability to maintain their sodium-potassium pumps, and eventually, they die. The last step in glycolysis will not occur if pyruvate kinase, the enzyme that catalyzes the formation of pyruvate, is not available in sufficient quantities. In this situation, the entire glycolysis pathway will proceed, but only two ATP molecules will be made in the second half. Thus, pyruvate kinase is a rate-limiting enzyme for glycolysis. Q: What process starts with glucose and ends with two pyruvate molecules, a total of four atp molecules and two molecules of nadh? A:
****
A:
glycolysis