input: OPTIONS:
- echos and troughs
- waves and troughs
- bands and troughs
- crests and troughs Now, answer this question: Answer the following question given this paragraph: In a transverse wave, such as a wave in a rope, the medium vibrates at right angles to the direction that the wave travels. The high points of transverse waves are called crests, and the low points are called troughs. Q: What do you call the high and low points of transverse waves? A:
A:
output: crests and troughs

Answer the following question given this paragraph: The protist wraps around its prey, which is usually bacteria. Q: What is usually the prey of a protist? A:

OPTIONS:
- pathogens
- algae
- proteins
- bacteria

Answer: bacteria

Problem: OPTIONS:
- compass
- anemometer
- barometer
- thermometer
Q: Answer the following question given this paragraph: A thermometer is a device used to measure temperature. It is placed in contact with an object and allowed to reach thermal equilibrium with the object (they will have the same temperature). The operation of a thermometer is based on some property, such as volume, that varies with temperature. The most common thermometers contain liquid mercury, or some other liquid, inside a sealed glass tube. The liquid expands and contracts faster than the glass tube. Therefore, when the temperature of the thermometer increases, the liquid volume expands faster than the glass volume, allowing the liquid to rise in the tube. The positions of the liquid in the tube can then be calibrated for accurate temperature readings. Other properties that change with temperature can also be used to make thermometers; liquid crystal colors and electrical conductivity change with temperature, and are also relatively common thermometers. Q: What device is used to measure temperature? A:
Answer: thermometer

Problem:OPTIONS:
- fruits
- roots
- stalks
- leaves

Answer the following question given this paragraph: Q: Stomata are the main avenues of transpiration, the evaporative loss of water from what? A:
****
A: leaves

Answer the following question given this paragraph: Ecosystems are complex with many interacting parts. They are routinely exposed to various disturbances, or changes in the environment that effect their compositions: yearly variations in rainfall and temperature and the slower processes of plant growth, which may take several years. Many of these disturbances are a result of natural processes. For example, when lightning causes a forest fire and destroys part of a forest ecosystem, the ground is eventually populated by grasses, then by bushes and shrubs, and later by mature trees, restoring the forest to its former state. The impact of environmental disturbances caused by human activities is as important as the changes wrought by natural processes. Human agricultural practices, air pollution, acid rain, global deforestation, overfishing, eutrophication, oil spills, and illegal dumping on land and into the ocean are all issues of concern to conservationists. Equilibrium is the steady state of an ecosystem where all organisms are in balance with their environment and with each other. In ecology, two parameters are used to measure changes in ecosystems: resistance and resilience. The ability of an ecosystem to remain at equilibrium in spite of disturbances is called resistance. The speed at which an ecosystem recovers equilibrium after being disturbed, called its resilience. Ecosystem resistance and resilience are especially important when considering human impact. The nature of an ecosystem may change to such a degree that it can lose its resilience entirely. This process can lead to the complete destruction or irreversible altering of the ecosystem. Q: The two parameters used to measure changes in ecosystems are resistance and what related factor? A:
OPTIONS:
- strength
- acceptability
- variation
- resilience
resilience

Answer the following question given this paragraph: Schrodinger developed an equation that could be used to calculate the chances of an electron being in any given place around the nucleus. Based on his calculations, he identified regions around the nucleus where electrons are most likely to be. He called these regions orbitals . As you can see in the Figure below , orbitals may be shaped like spheres, dumbbells, or rings. In each case, the nucleus of the atom is at the center of the orbital. You can see animated models of orbitals this URL: http://www. chemistry. wustl. edu/~edudev/Orbitals/movie. html . Q: What term did schrodinger use for regions around the nucleus where electrons are most likely to be? A:
OPTIONS:
- arrays
- isotopes
- ellipses
- orbitals

Answer:
orbitals