Starting in 1945, nets designed to catch the biggest salmon were used in the pacific northwest. as a result, the smaller salmon had an advantage and had a better chance of survival. the small salmon survived to pass on their genes to succeeding generations. which type of natural selection is at work here? directional selection disruptive selection stabilizing selection

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

How do the evolutionary chart and the video support the claim that all living things are made up of cells?

How are viruses different from eukaryotic cells?