Answer the following question given this paragraph: Common digestive system problems include foodborne illness and food allergies. Following healthy food-handling practices may decrease your risk of foodborne illness. Food allergy symptoms can be prevented by avoiding the offending foods. Q: How can you prevent food allergy symptoms? Choices: - antioxidants - stem cell therapy - antiviral drugs - avoid offending foods A:
avoid offending foods
Answer the following question given this paragraph: Geologic maps detail the types and locations of rocks found in an area. Q: What type of maps detail detail the types and locations of rocks found in an area? Choices: - contour maps - polar maps - gnomic maps - geologic maps A:
geologic maps
Q: Answer the following question given this paragraph: Diamonds like the one pictured in the Figure below are the hardest of all minerals. Is a diamond a crystalline or an amorphous solid? How do you know?. Q: What is the hardest of all minerals? Choices: - titanium - gold - platinum - diamonds A:
A: diamonds
Question: Answer the following question given this paragraph: The main agents of soil erosion are water and wind. Q: The two main agents of soil erosion are water and what else? Choices: - humidity - glaciers - steam - wind A:
Answer: wind
*Question*
Answer the following question given this paragraph: The rate of the expansion of the universe is increasing. The cause of this increase is unknown; one possible explanation involves a new form of energy called dark energy. Q: What is happening to the rate of the expansion of the universe? Choices: - it is decreasing - it is stable - it is unknown - it is increasing A:
**Answer**
it is increasing
(Question)
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? Choices: - embryo sac - neural sac - algae sac - yolk sac A:
(Answer)
yolk sac