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Q1. In the last few decades remarkable fossils have been discovered indicating that the ancestor of cetaceans (whales, dolphins, and porpoises) was a four-legged, terrestrial (land) mammal. Utilize darwin's theory of evolution by natural selection to explain how a group of ancient mammals couple be the ancestors of a major new group of mammals, the cetaceans.
Q2. Evaluation of amino acid sequences can shed light on the evolutionary divergence of related species. Would you expect all proteins of a given set of living species to illustrate the same degree of divergence? Why or why not?
If the horticulturist breeding gardenias succeeds in having a single plant with a particularly advantageous set of traits, which would be her most probable and efficient route to establishing a line of such plants.
What must a biologist do if she or he finds that different methods of analyzing the same data give different estimates of the relationships among certain taxa.
Both endocrine and nervous system are major regulating system of the body; but nervous system has been compared to an airmail delivery system and the endocrine to pony express. Briefly explain the comparison.
Which of the statements best describes the shape of its teeth? How many teeth does it have in the premaxilla.
Explain how one of these main concepts is connected to your own personal observations. Clearly describe two methodological problems associated with the way Scientists study the topic.
Will xylem fluid flow into the aphid. Which microbes are most susceptible versus most resistant to disinfectants? Why.
We are told that every surface we touch is teeming with bacterial cells, and bacteria are found in the pools we swim in, water we wash with, and on the hands of friends. Why don't we always have problems with bacterial infections all over our bodies.
What type of electrode would they need to use (express material and design)? Provide a simplified schematic (circuit model of the electrode) described in the notes. Also discuss at least two benefits of an exoskeleton as well as how arthropod grows ..
Why can prakaryotes quickly re infect a patient if they are not wiped out? How may this result in the evolution of drug resistant pathogens.
What does this show about the relation between voluntary and involuntary reflex movement. If the bacteriorhodopsin molecules were randomly oriented, would you expect ATP to be synthesized? Give details about the answers.
Early in the morning, the black caterpillars rest in a tightly packed group on the east-facing surface of the tent. In mid afternoon, the group is found on the tent under surface, each caterpillar individually hanging from the tent by just a few of i..
What information does it not provide that may be useful for deciding on conservation efforts. What are the genotypes of the parents.
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