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In a study published in the journal Nature, scientists studied eight ponds in Florida: four that were populated by a species of fish and four that were not. As they studied the ponds, they noted that the areas around the four fish-populated ponds showed decreased populations of dragonflies and dragonfly larvae, whereas the four without fish showed abnormally large populations of dragonflies and larvae. Dragonflies feed on bees, butterflies, and other pollinators.
Predict what would happen to the rate of pollination of flowers in a field next to a pond with no fish. Use evidence to support this prediction. Identify the keystone species in this scenario and explain how you have inferred this.
Describe the key experiments that supported the semi-conservative model of DNA replication in E. coli.
She says she has been really tired and has noticed sores in her mouth and tingling in her legs. She states her bloating and gas seem to get better
How many copper atoms are in a pure copper statue with a mass of 144 kg?
Using the scientific method, develop a sound hypothesis explaining the increase in disease cases and a method for testing this hypothesis.
Explain why a sea star that lives in the ocean (3.5 % salt) would not survive long if you took it home and put it in a bathtub filled with tap water.
How does the presence of nitrate + phosphate and ammonium ions affect fertilization?
What are the three main ions that play a role in the equilibrium membrane potential. What ion drives the potential, and why. What kinds of functions might these shared genes have.
Will this type of mutation affect the copy of this gene on the homologous chromosome?
What is PCR? Describe the technique in detail.
Discuss neurodegenerative diseases, like Parkinson's or Alzheimer's Identify specifically the cells and processes affected by these diseases.
If an atom donates an electron, and becomes positive, another atom will accept the electron, and is negative.
Based upon your knowledge of resistance training and the anatomy of the wrist. Why might an individual have wrist pain when performing resistance exercise?
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