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Q1. In the 5-7 million years that hominid lineage has been diverging from its common ancestor with the great apes, dozens of hominid species have arisen, frequently with several species coexisting in time and space. As in recent times as 30,000 years ago, Homo sapiens coexisted with Homo neanderthalensis. Both species had large brains and advanced intellects. The fact that these traits were common to both species is most easily explained by which of the next?
a. species selectionb. uniformitarianismc. sexual selectiond. species selection & uniformitarianisme. species selection, uniformitarianism, & sexual selection
Q2. How might you deterine whether the turbidity in your nutrient broth tube was from a mixture of different microbes or from the growth of only one kind of microbe?
Why is the gene coding for ribosomal RNA used for establishing phylogenetic relationships and how does this compare to previous methods for placing organisms in appropriate taxa
The main principles of evolution are outline below. Using the principles of evolution as a guide, describe how antibacterial resistance happens OR describe how different skin pigmentation evolved in the human population.
In a circumstance that cholesterol cannot participate in metabolic processes related to the synthesis of molecules, which of the following is/are most likely to be affected? A) insulin B) aldosterone C) calcitonin D) B and C E) none of the above
q1. spontaneous depurination of dna occurs at the rate of about 3 x 10-9 depurinations per purine per minute most of
usually for physical education disciplines, students are required to give presentation regarding a single protein that is related to sports or diseases.
In the past, people infected with Hansen's disease were committed to leprosariums to prevent the spread of the disease. Explain why do you think that once treatments became effective.
q1. think of the beavers digestive organ system. describe its overall role. listing several of the organs in this
suppose a bird that eats grasshoppers moves into the prairie. How will this affect natural selection of the grasshoppers? How might this change in a drought year.
Max's regular exercise regimen has reduced his high blood pressure, allowing him to achieve normal blood pressure on a single antihypertensive medication.
A certain form of color blindness in humans is sex-linked. Assume that 2% of the males in a population are color blind. What percentage of the females in this population is expected to be color blind at Hardy-Weinberg equilibrium? What is the perc..
Draw a restriction map of the plasmid. Label the respective restriction sites (H and E for HindIII and Eco RI respectively) and indicate the distances between each of the fragments.
Sketch a diagram that illustrates how you would expect the triglyceride and phospholipid molecules to interact with the water. Be sure to indicate structures, if any that might form as a result of these interactions.
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