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A plant biologist notices that plants grown in fertilizer are larger than plants grown without fertilizer. She then wonders if fertilized plants also produce more fruits relative to non-fertilized plants. To test this, she carries out an experiment in a greenhouse with potted plants, some receiving fertilizer and some not. At the end of the experiment, she counts the fruits produced and finds that there is no difference between the number of fruits for the fertilized plants and the number of fruits for the non-fertilized plants.
1. What is the observation?
2. What is the hypothesis?
3. What is the control?
4. Based on the results (no difference between the two groups), was the hypothesis proven true? Was the hypothesis supported or should it be rejected?
Which is the ratio of dividing cells to the total number of cells in the sample. Scientists frequently calculate mitotic index to evaluate the growth rates of different types of tissue. Which type of tissue would have a higher mitotic index, normal t..
Fungi in the soil form a symbiotic association with roots. These fungi create a large surface area associated with the root hairs that helps to do which of the following? Which of the following mechanisms help plant roots acquire negatively-charge..
In your own words. Compare the major plant groups. Consider their special features (adaptations) to help formulateyour answers. Do they have:
In hill reaction What is the expect to happen to absorbance when the test tube is exposed to light? why?
Does the movement of molecules demonstrated here involve passive or active transport, and why?
A new strategy for generating more effective tumor vaccines includes using
How would the Km change for methanol compared to ethanol and how would the Km's of methanol and isopropanol compare.
Microevolution is defined as a change inallele frequencies in a population over generations. Please explainwhat an allele is, in genetic terms. Name the three major factorsinvolved in allele frequency changes in populations.
Both excitatory and inhibitory neuron form junctions with muscles. By what mechanism do inhibitory neurotransmitters prevent the postsynaptic cell from firing an action potential?
5-different mutations were derived from base pair substitutions at a single codon. In this codon, the mutant alleles had arginine, leucine.
Distinguish a body cavity (i.e., coelom) from an alimentary canal in terms of embryonic tissues of origin and relative position in the adult animal's body.
pre-lab questions 1 how could you test to see if an enzyme was completely saturated during an experiment? 2 list three
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