input: OPTIONS:
- nervous
- reproductive
- hereditary
- circulatory Now, answer this question: Answer the following question given this paragraph: The half-life of titanium-44 is 60.0 y. A sample of titanium contains 0.600 g of titanium-44. How much remains after 100.0 y?. Q: Name the type of system that a jellyfish does not have? A:
A:
output: circulatory

Answer the following question given this paragraph: Water is an example of a common chemical compound. As you can see in the Figure below , each water molecule consists of two atoms of hydrogen and one atom of oxygen. Water always has this 2:1 ratio of hydrogen to oxygen. Like water, all compounds consist of a fixed ratio of elements. It doesn't matter how much or how little of a compound there is. It always has the same composition. Q: What molecule consists of two atoms of hydrogen and one atom of oxygen? A:

OPTIONS:
- carbon monoxide
- hydrogen peroxide
- air
- water

Answer: water

Problem: OPTIONS:
- not solid
- only horizontal
- not magnetic
- not horizontal
Q: Answer the following question given this paragraph: Sedimentary rocks that are not horizontal have been deformed. Q: What is a defining feature of deformed sedimentary rocks? A:
Answer: not horizontal

Problem:OPTIONS:
- food
- heating
- osmosis
- energy

Answer the following question given this paragraph: A gated channel protein is a transport protein that opens a "gate," allowing a molecule to pass through the membrane. Gated channels have a binding site that is specific for a given molecule or ion. A stimulus causes the "gate" to open or shut. The stimulus may be chemical or electrical signals, temperature, or mechanical force, depending on the type of gated channel. For example, the sodium gated channels of a nerve cell are stimulated by a chemical signal which causes them to open and allow sodium ions into the cell. Glucose molecules are too big to diffuse through the plasma membrane easily, so they are moved across the membrane through gated channels. In this way glucose diffuses very quickly across a cell membrane, which is important because many cells depend on glucose for energy. Q: What do many cells depend on glucose for? A:
****
A: energy

Answer the following question given this paragraph: We saw that the amount of solar radiation an area receives depends on its latitude. The amount of solar radiation affects the temperature of a region. Latitude has other effects on climate. Q: Latitude affects the amount of what received by an area, which in turn affects the temperature of a region? A:
OPTIONS:
- chemical radiation
- geothermal radiation
- current radiation
- solar radiation
solar radiation

Answer the following question given this paragraph: Electromagnetic waves differ in their wavelengths and frequencies. The higher the frequency of an electromagnetic wave, the greater its energy. The speed of an electromagnetic wave is the product of its wavelength and frequency, so a wave with a shorter wavelength has a higher frequency, and vice versa. Q: The speed of an electromagnetic wave is the product of its wavelength and what else? A:
OPTIONS:
- height
- resonance
- density
- frequency

Answer:
frequency