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Topic: Ecosystem Connections
What can happen when you remove or add fish or nutrients to an ecosystem? Search in your textbook or on the internet for examples of case studies where this has happened and describe the ecological effects of such an addition or subtraction in one or more case studies. Be sure to let us know where you got the information, and try to focus your attention on aquatic ecosystems involving fishes. Useful search terms might be invasive species, introduced species, overfishing, extinction, extirpation, eutrophication, runoff, alternative stable states, and trophic cascades. Once we've accumulated some good examples, try to answer the following questions. Is it easy or hard to predict what will happen when we perturb an ecosystem? Why or why not?
The bacterium Helicobactor pylori naturally grows in human and animal stomachs at pH about 2. It will grow also at pH 2 and pH 7 in culture media. It's genome sequence has been determined and annotated.
As we entered the 21st century, the Human Genome Project, a massive collaborative effort by scientists all over the world
A woman is heterozygous for 2-harmful recessive alleles, each on a different chromosome. One is phenylketonuria and the other is cystic fibrosis.
The ligamentum teres (round ligament) of the liver forms fromthe fetal:
Red-winged blackbird
The human brain is the world's fastest computer! Let's discuss the structure of the neuron, and explain how a nerve impulse is transmitted. Be as detailed as you can
question1 explain the challenges and advantages of having internal gills over external gills for gas exchange?question
Why are some people able to squeeze a clothespin more times in a minute than others? describe three basic trends in animal evolution?
A 27 year old male with a history of asthma was hospitalized with a four day history of progressive cough and two days of spiking fevers. Gram-positive cocci in pairs were cultured from ablood sample. What is the diagnosis?
The boss in your laboratory has just heard of a proposal through another laboratory that genes for eye color & the length of body bristles may be linked in Drosophila .
Why does the thoracic cavity expand in volume?
Industrial melanism refers to the dark pigmentation that evolved in some insects giving them protective coloration on vegetation darkened by soot in heavily industrialized areas prior to air pollution regulation.
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