Connor & miguel want to investigate if the type of fertilizer changes the color of their hydrangea flowers. they select 10 hydrangea bushes & plant them in the same yard with the same type of soil. every bush gets 3 cups of fertilizer, but each receiving a different brand. one bush gets no fertilizer. all bushes receive morning sunlight and no afternoon sunlight. all bushes are watered the same amount every other morning. after 4 weeks, the boys observe the color of the blooms on each bush. 1. independent variable: 2. dependent variable: 3. hypothesis: 4. control group: 5. experimental group: 6. constants:

The trp operon in e. coli regulates genes that code for enzymes required for synthesis of the repressible operon. when tryptophan is not available amino acid tryptophan. the trp operon is a in the environment, the trp repressor protein activeinactiveregulated. therefore, rna polymerase can bind to the genes to begin transcription.

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.