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Why is it beneficial to plants that soil particles have negatively charged surfaces?
A. It helps maintain the water potential of the soilB. Toxic metals are trapped and kept away from the plants.C. They capture negatively-charged ionsD. Negatively-charged ions are pushed towards the rootsE. They attract positively-charged ions and prevent them from being washed deep into the soil.
Vinblastine is a pharmaceutical used to treat several cancers, such as lung and breast cancer and Hodgkin's lymphoma. It binds tubulin, a protein found in microtubules of the cytoskeleto.
Describe one way by which plants and Animals work together to ensure the success of their reproduction.
Describe the similarities between electrical activity of a simulated neuron and the fast block to polyspermy that occurs during fertilization in sea urchins.
Develop hypotheses predicting the effect of pyrite and coal on the acidity of water? Based on the results of your experiment, would you reject or accept each hypothesis that you produced in question 1?
In the figure below, suppose the left-hand individual is selfed. What pattern of radioactive bands would you see in a Southern analysis of the progeny?
how is the base sequence of messenger RNA translated into protien?
What is the advantage of radial symmetry for sessile animals such as hydras and bilateral symmetry for mobile animals such as planaria? Also, what major evolutionary trends accompany bilateral symmetry?
Examine the bone markings of the vertebrae and distinguish among the cervical, thoracic, and lumbar vertebrae.
In order for the 4-nitrophenol to release the yellow colour expected, it has to be fully ionised. With a pKa of 7, I have decided that pH9 will allow it to be fully ionised - this is also supported by yellow colour given off, and a reasonable calib..
Both RT and PR represent potential targets for antiretroviral drugs. Drugs called nucleoside analogs (NA) act against RT, whereas drugs known as protease inhibitors (PI) act against PR.
What are ten - twenty possible variables that may affect seed germination? Make a table for your data, including title, units, and any other useful information.
A drug impairs oxyegen consumption on liver mitochondria at a buffer of 7.4pH, Mg, and adp. It inhibits O2 uptake if isocitrate, 2-ketoglutarate and malate were substrates, but it will NOT is succinate is a substrate.
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