Answer the following question given this paragraph: Cubes have six sides that are all the same size square. All of the angles in a cube are equal to 90. Rhombohedra also have six sides, but the sides are diamond-shaped. Octahedra have eight sides that are all shaped like triangles. Q: What shape are the eight sides of an octahedra? Choices: - rectangles - hexagon - square - triangles A:
triangles
(Question)
Answer the following question given this paragraph: The phylum Annelida is made up of segmented worms such as earthworms. Segmented worms are divided into many repeating segments. There are roughly 15,000 species of annelids. Most belong to one of three classes. A species in each class is pictured in Figure below . Q: Which phylum is made up of segmented worms such as earthworms? Choices: - chordata - arthropod - nematoda - annelida A:
(Answer)
annelida
Ques: Answer the following question given this paragraph: The water Americans get from their faucets is safe. This water has been treated and purified. At least 20% of the world's people do not have clean drinking water always available. That's more than 1 billion people. They must drink water from where they can get it. Maybe straight from a river or pond ( Figure below ). Human wastes may be in the water. If that's the case, the water will probably contain pathogens. Pathogens are organisms that cause diseases. Q: At least 20 percent of the world's people do not have a ready supply of what? Choices: - clothing - food - oil - clean drinking water A:
Ans: clean drinking water
(Q).
Answer the following question given this paragraph: Fossils of ocean animals are found at the top of Mt. Everest. Mt. Everest is the highest mountain on Earth. These fossils show that the area was once at the bottom of a sea. The seabed was later uplifted to form the Himalaya mountain range. An example is shown in the Figure below . Q: What evidence is there that mt. everest was once at the bottom of a sea? Choices: - skulls - corals - glaciers - fossils A:
(A).
fossils
Ques:Answer the following question given this paragraph: When water freezes in a non-crystalline, amorphous form as frost, the water molecules are fixed in place, but not in a regular, repeating pattern. Frost and other amorphous solids are characterized by their unorganized and unpredictable structure. Because ice comes in both amorphous and crystalline forms, there are differences in the physical properties of ice such as its hardness and density. Q: What kind of solid is characterized by an unorganized and unpredictable structure? Choices: - magnetic - aqueous - porous - amorphous A:

Ans:amorphous
Question: Answer the following question given this paragraph: functionality of pepsin. Second, the stomach has a thick mucus lining that protects the underlying tissue from the action of the digestive juices. When this mucus lining is ruptured, ulcers can form in the stomach. Ulcers are open wounds in or on an organ caused by bacteria (Helicobacter pylori) when the mucus lining is ruptured and fails to reform. Small Intestine Chyme moves from the stomach to the small intestine. The small intestine is the organ where the digestion of protein, fats, and carbohydrates is completed. The small intestine is a long tube-like organ with a highly folded surface containing fingerlike projections called the villi. The apical surface of each villus has many microscopic projections called microvilli. These structures, illustrated in Figure 34.12, are lined with epithelial cells on the luminal side and allow for the nutrients to be absorbed from the digested food and absorbed into the blood stream on the other side. The villi and microvilli, with their many folds, increase the surface area of the intestine and increase absorption efficiency of the nutrients. Absorbed nutrients in the blood are carried into the hepatic portal vein, which leads to the liver. There, the liver regulates the distribution of nutrients to the rest of the body and removes toxic substances, including drugs, alcohol, and some pathogens. Q: Which organ has a thick mucus lining that protects the underlying tissue from the action of the digestive juices? Choices: - liver - colon - spleen - stomach A:
Answer:
stomach