Although viruses exhibit some of the characteristics that define living organisms, they are considered nonliving. Explain why
What will be an ideal response?
Viruses have a basic internal structure and order based on biological molecules. They have genetic material that can change over time, so they show evolution. Parts of the virus particle can move, showing motility. However, viruses cannot carry out their own metabolism, cannot respond to their environment, and do not exhibit true growth and development.
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Which of the following statements about ocean acidification is false?
A. Ocean acidification increases the availability of carbonate ions in seawater. B. Increasing levels of CO2 in the ocean cause a decrease in the pH of seawater. C. The pH of surface oceans has dropped by 0.1 units in the past 40 years. D. Ocean acidification makes it more difficult for corals to secrete their skeletons. E. Ocean acidification is predicted to get worse as atmospheric CO2 levels rise.
A ________ consists of an organism's common ancestor and all of its descendents
a. phylogenetic group b. phenetic group c. monophyletic group d. gene pool
The fusion of two haploid hyphae whereby the nuclei remain separate in the cell creates a _______ cell.
A. dikaryotic B. haploid C. tetraploid D. diploid E. uniploid
Figure 45.6A
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The image in the above photograph is a prime example of ____.
A. double mutualism B. associative commensalism C. interference competition D. team predation E. parasitism