Problem: OPTIONS:
- vascular tissue
- passive transport
- photosynthesis
- gas exchange
Q: Answer the following question given this paragraph:   Gas exchange is needed to provide cells with the oxygen they need for cellular respiration. Cells cannot survive for long without oxygen. Gas exchange is also needed to carry away carbon dioxide waste. Some of the carbon dioxide in the blood dissolves to form carbonic acid, which keeps blood pH within a normal range.   Q: What is needed to provide cells with the oxygen they need for cellular respiration?   A:
Answer: gas exchange

Problem:OPTIONS:
- bones
- corals
- fuels
- fossils

Answer the following question given this paragraph:   Fossils may form in other ways. With complete preservation, the organism doesn't change much. As pictured below ( Figure below ), tree sap may cover an organism and then turn into amber . The original organism is preserved so that scientists might be able to study its DNA. Organisms can also be completely preserved in tar or ice.   Q: Tree sap enclosing an organism in amber or an organism preserved in tar or ice are actually examples of what?   A:
****
A: fossils

Answer the following question given this paragraph:   The magnitude, direction, and point of application of the force are incorporated into the definition of the physical quantity called torque. Torque is the rotational equivalent of a force. It is a measure of the effectiveness of a force in changing or accelerating a rotation (changing the angular velocity over a period of time). In equation form, the magnitude of torque is defined to be.   Q: What is the rotational equivalent of a force?   A:
OPTIONS:
- momentum
- power
- centripetal force
- torque
torque

Answer the following question given this paragraph:   Watch this video (http://openstaxcollege. org/l/pollen_release) to see a cedar releasing its pollen in the wind. Female Gametophyte The female cone also has a central axis on which bracts known as megasporophylls (Figure 32.10) are present. In the female cone, megaspore mother cells are present in the megasporangium. The megaspore mother cell divides by meiosis to produce four haploid megaspores. One of the megaspores divides to form the multicellular female gametophyte, while the others divide to form the rest of the structure. The female gametophyte is contained within a structure called the archegonium.   Q: What does the megaspore mother cell produce after meiosis division?   A:
OPTIONS:
- four diploid megaspores
- two diploid megapores
- two haploid megaspores
- four haploid megaspores

Answer: four haploid megaspores

Question: Answer the following question given this paragraph:   Figure 32.21 Supernovas are the source of elements heavier than iron. Energy released powers nucleosynthesis. Spectroscopic analysis of the ring of material ejected by Supernova 1987A observable in the southern hemisphere, shows evidence of heavy elements. The study of this supernova also provided indications that neutrinos might have mass. (credit: NASA, ESA, and P. Challis).   Q: What celestial events are the source of elements heavier than iron?   A:
OPTIONS:
- neutrons
- galaxies
- Space
- supernovas
Answer: supernovas

input: OPTIONS:
- some matter
- Objects
- Solids
- all matter Now, answer this question: Answer the following question given this paragraph:   Elements are pure substances that make up all matter, so each one is given a unique name. The names of elements are also represented by unique one-, two-, or three- letter symbols.   Q: Elements are pure substances that make up what?   A:
A:
output:
all matter