Answer the following question given this paragraph: Solar Dependence and Food Production Some organisms can carry out photosynthesis, whereas others cannot. An autotroph is an organism that can produce its own food. The Greek roots of the word autotroph mean "self" (auto) "feeder" (troph). Plants are the best-known autotrophs, but others exist, including certain types of bacteria and algae (Figure 5.2). Oceanic algae contribute enormous quantities of food and oxygen to global food chains. Plants are also photoautotrophs, a type of autotroph that uses sunlight and carbon from carbon dioxide to synthesize chemical energy in the form of carbohydrates. All organisms carrying out photosynthesis require sunlight. Q: What living things are considered photoautotrophs because they use sunlight and carbon from carbon dioxide to synthesize chemical energy in the form of carbohydrates? Choices: - protazoa - bacteria - moulds - plants A:
plants
Answer the following question given this paragraph: What goes into the cell? Oxygen and glucose are both reactants of cellular respiration. Oxygen enters the body when an organism breathes. Glucose enters the body when an organism eats. Q: What element enters the body when an organism breathes? Choices: - helium - water - methane - oxygen A:
oxygen
Q: Answer the following question given this paragraph: Mendel investigated seven different characteristics in pea plants. In this chart, cotyledons refer to the tiny leaves inside seeds. Axial pods are located along the stems. Terminal pods are located at the ends of the stems. Q: Terminal pods are located at the end of what? Choices: - fruits - leaves - spines - stems A:
A: stems
Question: Answer the following question given this paragraph: Water flowing out of the ground at a spring may flow downhill and enter a stream. That's what happens to the water that flows out of Big Spring in Missouri. If the water from a spring can't flow downhill, it may spread out to form a pond or lake instead. Lake George in New York State, which is pictured in Figure below , is a spring-fed lake. The lake basin was carved by a glacier. Q: If water from a spring can't flow downwards, it can spread out to form one of 2 things. what are they? Choices: - lake or ocean - ocean or sea - ocean or river - pond or lake A:
Answer: pond or lake
*Question*
Answer the following question given this paragraph: Transport of Oxygen in the Blood Although oxygen dissolves in blood, only a small amount of oxygen is transported this way. Only 1.5 percent of oxygen in the blood is dissolved directly into the blood itself. Most oxygen98.5 percentis bound to a protein called hemoglobin and carried to the tissues. Hemoglobin Hemoglobin, or Hb, is a protein molecule found in red blood cells (erythrocytes) made of four subunits: two alpha subunits and two beta subunits (Figure 39.19). Each subunit surrounds a central heme group that contains iron and binds one oxygen molecule, allowing each hemoglobin molecule to bind four oxygen molecules. Molecules with more oxygen bound to the heme groups are brighter red. As a result, oxygenated arterial blood where the Hb is carrying four oxygen molecules is bright red, while venous blood that is deoxygenated is darker red. Q: Most oxygen in blood is bound to a protein called what, and carried to the tissues? Choices: - platelete - hydrogen - plasma - hemoglobin A:
**Answer**
hemoglobin
*Question*
Answer the following question given this paragraph: Some people recover from spinal cord injuries. But many people are paralyzed for life. Thanks to the work of Christopher Reeve ( Figure below ), more research is being done on spinal cord injuries now than ever before. For example, scientists are trying to discover ways to regrow damaged spinal cord neurons. Q: What system is the spinal cord related to? Choices: - circulatory system - lymphatic system - digestive system - nervous system A:
**Answer**
nervous system