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Discuss the rationale behind taxonomists placing sharks and dolphins in different taxonomic groups, even though they are both aquatic, have very similar body forms, and share other traits as well.
State which cells in a human testis produce testosterone and its function(s) and state which hormones are produced by a human ovary, and their functions.
Of the four chambers of the human heart, which has the thickest walls, and why? Why can you not catch the same cold twice, but a new cold will make you sick for a week or two? What is the key step in spermatogenesis that ...
1. Explain how insulin regulates glucose levels in the blood? 2. What is unique about the glands of the endocrine system?
The primary goal of the reproductive system is the production of a new human being. Let's consider each step of that process, beginning with the formation of gametes (sperm and eggs) and ending with birth. Can someone st ...
Transgenic plants can be given characteristics that are agriculturally useful such as resistance to herbicides. Bt corn is one example. Identify some advantages and problems associated with genetically modified Bt corn. ...
Microbiology 1. For what specific purpose was gram staining developed for? what is it used for today? 2. Why is the presence of air bubbles a sign of contamination? 3. Why is a gram stain helpful when monitoring bacteria ...
28 year old female with 2 day history of urinary frequency, burning and pain upon urination, lower abdominal pain and vaginal discharge history of recurrent UTIs, chlamydia, gonorrhea x2 she has 3 children.
John has difficulty swallowing, loss of taste sensation in the posterior one-third of the right half of his tongue, and decreased salivation, especially on the right side. Describe the sensory portion of the affected neu ...
We all see animals in our day to day lives. Choose a behavior you saw exhibited by an animal. Explain your thoughts on the potential proximate and ultimate causes of the behavior.
Bacterial cells have only one DNA molecule, which is double stranded and is replicated in essentially the same fashion as in eukaryotes. Imagine that, following the techniques of other scientists studying DNA, you create ...
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