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A sample of insects and other invertebrates is collected from an urban stream. A total of 244 individuals is collected from 2 m2 of stream bottom habitat. In this sample there are 22 recognizably different types of invertebrate. The average total length of the individuals is 6.7 mm. What is the best estimate of species richness based on these data?
a. 122
b. 244
c. 22
d. 6.7
Describe how HIV is able to utilize host cell DNA machinery to replicate itself and ultimately infect new cells. In your discussion be sure to mention reverse transcriptase and the role of surface glycoproteins.
In humans, a dimple in the chin is a single gene, autosomal dominant characteristic. A man with the dimpled chin, whose mother lacked dimpled chin.
Assume that you have a 5000 bp double-stranded linear DNA molecule with a gap in one strand 500 nucleotides long, terminated with a 3'-OH group and a 5'-P group.
Grace heard on the evening TV news that the deep population in her state had been increasing rapidly in the past few years and it was common knowledge that deer walked the streets at night.
Which groups of foods are underrepresented or overrepresented in your diet? If you did not consume the recommended number of servings from each group, explain why. Propose how you might consume the recommended number of servings from each group in th..
Water is constantly lost from the body via sweat, secretions and other processes. These secretions include saliva and enzyme solutions secreted into food as it's processed in the GI tract.
hypercholesterlemia is a genetic diease that affects 1 out of 500 people worldwide. this is more that one genetic cause of the disease. Class 1 is described as an autosome dominant disease.
Why do human beings play a unique role both in the degradation and the preservation of the biosphere and what is the importance of the "greenhouse effect"?
Type your question hereHow is the plasticity of the brain throughout life evident in recovery from brain damage? What are some factors that determine its extent and facilitate recovery? What limits are there in recovery from injury in children? In..
The client is 52years old and has a history of hypertension. His cholesterol level is 245. He states his job is very stressful. He admits he is overweight. His father died of stroke at age 60. The nurse encourages him to eat fish. Why is the nurse te..
Which best describes the codon-anticodon binding?
q1. 1. why are some fruits sweet and some sour whereas others have no specific taste?2. how does ripening of fruit
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