Problem: OPTIONS:
- plateletes
- white blood cells
- monocytes
- red blood cells
Q: Answer the following question given this paragraph: Red Blood Cells Red blood cells, or erythrocytes (erythro- = "red"; -cyte = "cell"), are specialized cells that circulate through the body delivering oxygen to cells; they are formed from stem cells in the bone marrow. In mammals, red blood cells are small biconcave cells that at maturity do not contain a nucleus or mitochondria and are only 78 m in size. In birds and nonavian reptiles, a nucleus is still maintained in red blood cells. The red coloring of blood comes from the iron-containing protein hemoglobin, illustrated in Figure 40.6a. The principal job of this protein is to carry oxygen, but it also transports carbon dioxide as well. Hemoglobin is packed into red blood cells at a rate of about 250 million molecules of hemoglobin per cell. Each hemoglobin molecule binds four oxygen molecules so that each red blood cell carries one billion molecules of oxygen. There are approximately 25 trillion red blood cells in the five liters of blood in the human body, which could carry up to 25 sextillion (25 1021) molecules of oxygen in the body at any time. In mammals, the lack of organelles in erythrocytes leaves more room for the hemoglobin molecules, and the lack of mitochondria also prevents use of the oxygen for metabolic respiration. Only mammals have anucleated red blood cells, and some mammals (camels, for instance) even have nucleated red blood cells. The advantage of nucleated red blood cells is that these cells can undergo mitosis. Anucleated red blood cells metabolize anaerobically (without oxygen), making use of a primitive metabolic pathway to produce ATP and increase the efficiency of oxygen transport. Not all organisms use hemoglobin as the method of oxygen transport. Invertebrates that utilize hemolymph rather than blood use different pigments to bind to the oxygen. These pigments use copper or iron to the oxygen. Invertebrates have a variety of other respiratory pigments. Hemocyanin, a blue-green, copper-containing protein, illustrated in Figure 40.6b is found in mollusks, crustaceans, and... Q: What is the common term for erythrocytesare, specialized cells that circulate delivering oxygen to cells and are formed from stem cells in the bone marrow? A:
Answer: red blood cells

Problem:OPTIONS:
- three plates sliding
- plates breaking
- plates rupturing
- two plates sliding

Answer the following question given this paragraph: Q: What can increase the occurance of earthquakes? A:
****
A: two plates sliding

Answer the following question given this paragraph: Lysosomes are like the recycling trucks that carry waste away from the factory. Lysosomes have digestive enzymes that break down old molecules into parts that can be recycled. Q: Lysosomes have what type of enzymes that break down old molecules into parts that can be recycled? A:
OPTIONS:
- corrosive
- bacterial
- probiotics
- digestive
digestive

Answer the following question given this paragraph: The Karakoram Range is part of the Himalaya Mountains. K2, pictured here, is the second highest mountain the world at over 28,000 feet. The number and height of mountains is impressive. Q: What is the second highest mountain in the world, at over 28,000 feet? A:
OPTIONS:
- pikes peak
- makalu
- everest
- k2

Answer: k2

Question: Answer the following question given this paragraph: The smallest particle of an element that still has the element's properties is an atom . All the atoms of an element are alike, and they are different from the atoms of all other elements. For example, atoms of gold are the same whether they are found in a gold nugget or a gold ring (see Figure below ). All gold atoms have the same structure and properties. Q: What is the smallest particle of an element that still has the element's properties? A:
OPTIONS:
- an ion
- a nucleus
- an electron
- an atom
Answer: an atom

input: OPTIONS:
- carbonization
- spongin
- petrification
- permineralization Now, answer this question: Answer the following question given this paragraph: Some fossils are created when minerals replace the organic material. This is called permineralization. Q: What is it called when minerals replace the organic material to create fossils? A:
A:
output:
permineralization