input: OPTIONS:
- generation
- cloning
- symbiosis
- evolution Now, answer this question: Answer the following question given this paragraph: When geologic and climatic conditions are changing, evolution may occur more quickly. Thus, long periods of little change may be interrupted by bursts of rapid change. This model of the timing of evolution is called punctuated equilibrium . It is better supported by the fossil record than is gradualism. This model suggests that niches left open by sudden geologic and climatic changes may be rapidly filled by bursts of evolution. Q: Sudden changes in geologic and climatic conditions can spur what process? A:
A:
output: evolution

Answer the following question given this paragraph: Cellulose is another complex carbohydrate that is a polymer of glucose. However, glucose molecules are bonded together differently in cellulose than they are in starches. Cellulose molecules bundle together to form long, tough fibers, as you can see in the Figure below . Have you ever eaten raw celery? If you have, then you probably noticed that the stalks contain long, stringy fibers. The fibers are mostly cellulose. Cellulose is the most abundant biochemical compound. It makes up the cell walls of plants and gives support to stems and tree trunks. Cellulose also provides needed fiber in the human diet. We can't digest cellulose, but it helps keep food wastes moving through the digestive tract. Q: What human bodily function does cellulose help with? A:

OPTIONS:
- stops food wastes
- sleep
- reproduction
- moves food wastes

Answer: moves food wastes

Problem: OPTIONS:
- perceptual
- asexual
- individual
- sexual
Q: Answer the following question given this paragraph: Sexual reproduction is typically slower. However, it also has an advantage. Sexual reproduction results in offspring that are all genetically different. This can be a big plus for a species. The variation may help it adapt to changes in the environment. Q: What kind of reproduction results in offspring that are generally all genetically different? A:
Answer: sexual

Problem:OPTIONS:
- dna
- migration
- the earth
- the environment

Answer the following question given this paragraph: The rate of evolution is influenced by how quickly the environment is changing. Long periods of gradual evolutionary change may be interrupted by short bursts of rapid change. Q: The rate of evolution is influenced by the rate of changes to what? A:
****
A: the environment

Answer the following question given this paragraph: User:Grm_wnr/Wikimedia Commons, modified by CK-12 Foundation. The central nervous system is composed of the brain and the spinal cord . Public Domain. Q: The central nervous system is composed of the brain and what else? A:
OPTIONS:
- the sclerotic cord
- the dynamic cord
- the lateral cord
- the spinal cord
the spinal cord

Answer the following question given this paragraph: Zinc is a silvery metal that quickly tarnishes to a blue-gray appearance. This change in color is due to an adherent coating of a basic carbonate, Zn2(OH)2CO3, which passivates the metal to inhibit further corrosion. Dry cell and alkaline batteries contain a zinc anode. Brass (Cu and Zn) and some bronze (Cu, Sn, and sometimes Zn) are important zinc alloys. About half of zinc production serves to protect iron and other metals from corrosion. This protection may take the form of a sacrificial anode (also known as a galvanic anode, which is a means of providing cathodic protection for various metals) or as a thin coating on the protected metal. Galvanized steel is steel with a protective coating of zinc. Q: A protective coating of zinc to prevent corrosion is applied to steel and other metals labeled what? A:
OPTIONS:
- polarized
- battered
- corroded
- galvanized

Answer:
galvanized