Answer the following question given this paragraph: When plants and other organisms die, decomposers break down their remains. In the process, they release nitrogen in the form of ammonium ions. Nitrifying bacteria change the ammonium ions into nitrates. Some of the nitrates are used by plants. Some are changed back to nitrogen gas by denitrifying bacteria. Q: Which members of the food chain break down remains of plants and other organisms when they die? A:
OPTIONS:
- nematodes
- Respiration
- fluxes
- decomposers

Answer: decomposers

Question: Answer the following question given this paragraph: Motility The majority of protists are motile, but different types of protists have evolved varied modes of movement (Figure 23.8). Some protists have one or more flagella, which they rotate or whip. Others are covered in rows or tufts of tiny cilia that they coordinately beat to swim. Still others form cytoplasmic extensions called pseudopodia anywhere on the cell, anchor the pseudopodia to a substrate, and pull themselves forward. Some protists can move toward or away from a stimulus, a movement referred to as taxis. Movement toward light, termed phototaxis, is accomplished by coupling their locomotion strategy with a light-sensing organ. Q: What is the term for movement toward light? A:
OPTIONS:
- phototropism
- gravitational pull
- autolysis
- phototaxis
Answer: phototaxis

input with options: Answer the following question given this paragraph: An alloy is a mixture of a metal with one or more other elements. The other elements may be metals, nonmetals, or both. An alloy is formed by melting a metal and dissolving the other elements in it. The molten solution is then allowed to cool and harden. Alloys generally have more useful properties than pure metals. Several examples of alloys are described and pictured below. You can learn about another alloythe amazing alloy called memory wireat the following URL. If you have braces on your teeth, you might even have this alloy in your mouth!. Q: What is a mixture of metal with one or more other elements? A:
OPTIONS:
- an alkali metal
- a halloid
- a metalloid
- an alloy
output: an alloy

Q: Answer the following question given this paragraph: Radio telescopes collect radio waves and are sometimes used in large arrays. Q: What does an array of radio telescopes collect? A:

OPTIONS:
- thermal waves
- light waves
- microwaves
- radio waves

A: radio waves

input: OPTIONS:
- genome sequence
- mitochondria
- Golgi apparatus
- nucleus Now, answer this question: Answer the following question given this paragraph: the nucleus. The nucleus contains one or more nucleoli, which serve as sites for ribosome synthesis. The nucleus houses the genetic material of the cell: DNA. DNA is normally found as a loosely contained structure called chromatin within the nucleus, where it is wound up and associated with a variety of histone proteins. When a cell is about to divide, the chromatin coils tightly and condenses to form chromosomes. There is a pool of cells constantly dividing within your body. The result is billions of new cells being created each day. Before any cell is ready to divide, it must replicate its DNA so that each new daughter cell will receive an exact copy of the organism's genome. A variety of enzymes are enlisted during DNA replication. These enzymes unwind the DNA molecule, separate the two strands, and assist with the building of complementary strands along each parent strand. The original DNA strands serve as templates from which the nucleotide sequence of the new strands are determined and synthesized. When replication is completed, two identical DNA molecules exist. Each one contains one original strand and one newly synthesized complementary strand. Q: Dna is normally found within what region of a cell? A:
A:
output: nucleus

Question: Answer the following question given this paragraph: In humans, there are five primary tastes, and each taste has only one corresponding type of receptor. Thus, like olfaction, each receptor is specific to its stimulus (tastant). Transduction of the five tastes happens through different mechanisms that reflect the molecular composition of the tastant. A salty tastant (containing NaCl) provides the sodium ions (Na+) that enter the taste neurons and excite them directly. Sour tastants are acids and belong to the thermoreceptor protein family. Binding of an acid or other sour-tasting molecule triggers a change in the ion channel and these increase hydrogen ion (H+). Q: In humans, there are five primary tastes, and each taste has only one corresponding type of what? A:
OPTIONS:
- organ
- neuron
- membrane
- receptor
Answer:
receptor