Answer:
The answer is statement 3: Smaller class size is related to better academic performance
Explanation:
An hypothesis is an assumption taken to be true for the purpose of investigation.
Unlike statement 3, the statements 1, 2 and 4 are more like facts, since they are definite.
Thus, statement 3 tells of an assumption, and is an hypothesis
Answer:
Plant and animal cells can be seen with a microscope. ... experiment in Atomic Labs. Go to the Biology lab and try the Investigating.
Enzymes catalyze reactions by decreasing the activation energy of a reaction.
A catalyst is a material that speeds up a chemical reaction without really being a reactant. Enzymes are the biological catalysts that drive biochemical reactions in living things. Most enzymes are proteins, however certain ribonucleic acid (RNA) molecules can also function as enzymes. Enzymes play a crucial role in reducing a reaction's activation energy, or the amount of energy required for the reaction to start.
Enzymes function by attaching to reactant molecules and holding them so that chemical bond-forming and bond-breaking reactions proceed more quickly. An enzyme will attach itself to one or more reactant molecules and start the process by catalyzing it. These compounds are the substrates for the enzyme. One substrate may undergo several product breakdowns in various reactions.
.
Learn more about enzymes here:
brainly.com/question/11402021
#SPJ4
Nutrition and building the cell membrane