Starting with one bacterial cell, how many cells would you have after 10 generations?
a) 10
b) 20
c) 200
d) 1024
Answer: d) 1024
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Anaphylactic shock may occur due to
What will be an ideal response?
Which of the following is a reason that conservation biologists have begun to use phylogenetic trees to assist in determining where to direct the limited resources that support conservation efforts?
A. Conservation biologists do not use phylogenetic trees to make decisions about limited resource use, the diagrams are used strictly in the study of evolution. B. Phylogenetic trees can demonstrate species with few close relatives that are more likely to possess unique features and adaptations not shared by other species. C. Distinct species are valuable because they represent a part of life that, if lost, cannot be recovered. D. Species with numerous, closely related groups are more likely to survive extinction due to hybridization with those closely related groups.
If cells are grown in media containing amino acids labeled with radioactive nitrogen (15N), most of the radioactivity will be found in the cells'
A) DNA. B) proteins. C) phospholipids. D) DNA and proteins. E) DNA and phospholipids.
It was possible to view viruses only after the invention of the electron microscope because they are too small to be seen with a light microscope.
Answer the following statement true (T) or false (F)