Answer the following question given this paragraph: Runoff is likely to cause more erosion if the land is bare. Plants help hold the soil in place. The runoff water in Figure below is brown because it eroded soil from a bare, sloping field. Can you find evidence of erosion by runoff where you live? What should you look for?. Q: Runoff is likely to cause more what if the land is bare? Choices: - abrasion - sediment - weathering - erosion A:
erosion
(Question)
Answer the following question given this paragraph: Many plants also produce hormones and toxins to fight pathogens. For example, willow trees, like the one in Figure below , produce salicylic acid to kill bacteria. The same compound is used in many acne products for the same reason. Q: What do willow trees produce to kill bacteria? Choices: - facultative acid - Posion - bacterial acid - salicylic acid A:
(Answer)
salicylic acid
Ques: Answer the following question given this paragraph: Pancreatic Juice The pancreas produces over a liter of pancreatic juice each day. Unlike bile, it is clear and composed mostly of water along with some salts, sodium bicarbonate, and several digestive enzymes. Sodium bicarbonate is responsible for the slight alkalinity of pancreatic juice (pH 7.1 to 8.2), which serves to buffer the acidic gastric juice in chyme, inactivate pepsin from the stomach, and create an optimal environment for the activity of pH-sensitive digestive enzymes in the small intestine. Pancreatic enzymes are active in the digestion of sugars, proteins, and fats. The pancreas produces protein-digesting enzymes in their inactive forms. These enzymes are activated in the duodenum. If produced in an active form, they would digest the pancreas (which is exactly what occurs in the disease, pancreatitis). The intestinal brush border enzyme enteropeptidase stimulates the activation of trypsin from trypsinogen of the pancreas, which in turn changes the pancreatic enzymes procarboxypeptidase and chymotrypsinogen into their active forms, carboxypeptidase and chymotrypsin. The enzymes that digest starch (amylase), fat (lipase), and nucleic acids (nuclease) are secreted in their active forms, since they do not attack the pancreas as do the protein-digesting enzymes. Q: Unlike liver bile, 'juice' produced by what organ is clear and composed mostly of water along with some salts, sodium bicarbonate, and digestive enzymes? Choices: - spleen - gallbladder - stomach - pancreas A:
Ans: pancreas
(Q).
Answer the following question given this paragraph: Analogous structures are structures that are similar in unrelated organisms. The structures are similar because they evolved to do the same job, not because they were inherited from a common ancestor. For example, the wings of bats and birds, shown in Figure below , look similar on the outside. They also have the same function. However, wings evolved independently in the two groups of animals. This is apparent when you compare the pattern of bones inside the wings. Q: What term is used to describe structures that are similar in unrelated organisms? Choices: - reproductive - symbolic - isolated - analogous A:
(A).
analogous
Ques:Answer the following question given this paragraph: Ribosomes are found in both eukaryotic and prokaryotic cells. Ribosomes are not surrounded by a membrane. The other organelles found in eukaryotic cells are surrounded by a membrane. Q: Which type of membrane are ribosomes surrounded by? Choices: - partial - permenant - temporary - none A:

Ans:none
Answer the following question given this paragraph: Temperature is the average kinetic energy of the molecules. Q: Temperature can be defined as the average of what type of energy of the molecules? Choices: - magnetic - optical - potential - kinetic A:
kinetic