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Q1. A scientist randomly separated a group of 100 lab rats into two groups of 50. One group was fed regular rat chow while the other was fed the same quantity of rat chow with added ddt. Both groups were housed in the same room with the same environmental conditions. At the end of the experiment, rats were weighed and the mean difference calculated. What variable(s) was/ were manipulated by the scientist?
a)DDT
b) Temperature
c) Weight difference
d) Both ddt and weight differences
e) both temperature and weight differences
Q2. •Complete descriptions of photosynthesis and aerobic respiration.
•explain how these two processes are linked between plants and animals based on reactants and products (water, carbon dioxide, glucose and oxygen) of both pathways.
•comprise the description of how energy is transferred from sunlight to ATP, from ATP to sugars, and from sugars to your cells.
A nearsighted woman (Nn) with hazel eyes (Hh) marries the man with normal vision and hazel eyes (Hh). Their three children all have blue eyes and normal vision. What is the possibility that their next child will have blue eyes and be nearsight.
As Ben jumped on his bike and headed for the fresh water lake, his mom called after him, "Don't swim if we have an electrical storm-it looks threatening". That was a valid request. Why with reason.
At 4.00 rm L, an expandable vessel contains 0.864 rm mol of oxygen gas. How numerous liters of oxygen gas should be added at constant temperature and pressure if you require a total of 1.96 mol of oxygen gas in the vessel.
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Calculate the steady state concentration of radon in the huse assume the ambient concentration is negligible. What is the genus of these bacteria.
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While Mexican hairless dogs are crossed with normally haired dogs, about half the pups are hairless and half have hair. While, though, two Mexican hairless dogs are mated, about a third of the pups produced hair, about two thirds are hairless and som..
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Describe how one media can identify both the selective and differential nature of the organism. What components of PCRs require to be changed in order to identify genetically modified meats or milk? Generally give details why those changes need to be..
On the other hand, vascular plants became dominant during the invasion of what type of habitat? What structures allowed them to infiltrate this new environment.
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