Cellulose-digesting microorganisms live in the guts of termites and ruminant mammals. The microorganisms have a home and food, and their hosts gain more nutrition from their meals. This relationship is an example of:
a. predation
b. herbivory
c. parasitism
d. mutualism
e. commensalism
Ans: d. mutualism
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Which of the following enzymes is responsible for initiating the proofreading repair mechanism?
A. DNA ligase B. DNA polymerase C. AP endonuclease D. DNA uracil glycosylase E. None of the answer options is correct.
The parietal lobe is responsible for ____
a. vision b. sensory input c. hearing d. generating a motor response e. inhibiting unsuitable behaviors
An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes
A. Water to move out of the cell B. Water to move into the cell C. Solutes to move into the cell D. Solutes to move out of the cell
A researcher is looking at a cellular sample using an electron microscope. They observe that while mRNA is being transcribed from the DNA that ribosomes are binding to the mRNA to make proteins. Is this sample from a bacterial or a eukaryotic cell?
What will be an ideal response?