Problem: OPTIONS:
- waste plankton
- land plankton
- source plankton
- marine plankton
Q: Answer the following question given this paragraph: The diatoms are unicellular photosynthetic protists that encase themselves in intricately patterned, glassy cell walls composed of silicon dioxide in a matrix of organic particles (Figure 23.18). These protists are a component of freshwater and marine plankton. Most species of diatoms reproduce asexually, although some instances of sexual reproduction and sporulation also exist. Some diatoms exhibit a slit in their silica shell, called a raphe. By expelling a stream of mucopolysaccharides from the raphe, the diatom can attach to surfaces or propel itself in one direction. Q: The diatoms are unicellular photosynthetic protists that encase themselves in intricately patterned, glassy cell walls composed of silicon dioxide in a matrix of organic particles. these protists are a component of freshwater and these? A:
Answer: marine plankton

Problem:OPTIONS:
- countries
- system
- tissue
- population

Answer the following question given this paragraph: Communities consist of populations of different species. The size and growth of populations in a community are influenced by species interactions. For example, predator-prey relationships control the growth of both predator and prey populations. Q: What is made up of organisms of the same species that live in the same area? A:
****
A: population

Answer the following question given this paragraph: Every split second that sunlight hits that leaf, photosynthesis is initiated, bringing energy into the ecosystem. It could be said that this is one of the most important - if not the absolutely most important - biochemical reactions. And it all starts with the leaf. Q: Photosynthesis is initiated by what hitting plants? A:
OPTIONS:
- dirt
- air
- moisture
- sunlight
sunlight

Answer the following question given this paragraph: Life on Earth is based on carbon. A possible explanation is that no other element in the periodic table forms compounds that are so diverse in their chemistry and physical properties. Discuss the chemistry of carbon with regard to. Q: What element on the periodic table forms the most diverse compounds? A:
OPTIONS:
- helium
- oxygen
- hydrogen
- carbon

Answer: carbon

Question: Answer the following question given this paragraph: Q: What are polymers composed of many sugar building blocks called? A:
OPTIONS:
- monosaccarides
- monomers
- hydrocarbons
- polysaccharides
Answer: polysaccharides

input: OPTIONS:
- toxic reaction
- spontaneous mutation
- hormonal reaction
- chemical reaction Now, answer this question: Answer the following question given this paragraph: A chemical reaction occurs when some substances change chemically to other substances. Chemical reactions are represented by chemical equations. Q: What occurs when some substances change chemically to other substances? A:
A:
output:
chemical reaction