I am characterized by having a test and axopods. Who am I?
a. green algae
b. actinopods
c. opisthokonts
d. stramenopiles
e. foraminiferans
b
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A key difference between classification methods and identification methods is that classification methods are designed to
a. examine an organism's staining characteristics b. determine the oxygen requirements of an organism c. determine evolutionary relationships of organisms d. determine if an organism is resistant to antibiotics e. determine an organism’s pathogenicity
The Q cycle
A) allows for the movement of protons without additional electrons. B) is associated with complex I. C) mediates the transfer of electrons to oxygen. D) accounts for the generation of superoxide. E) all of the above
During meiosis, a defect occurs in a cell that results in the failure of microtubules, spindle fibers, to bind at the kinetochores, a protein structure on chromatids where the spindle fibers attach during cell division to pull sister chromatids apart
. Which of the following is the most likely result of such a defect? A) New microtubules with more effective binding capabilities to kinetochores will be synthesized to compensate for the defect. B) Excessive cell divisions will occur resulting in cancerous tumors and an increase in the chromosome numbers known as polyploidy. C) The defect will be bypassed in order to and ensure normal chromosome distribution in the new cells. D) The resulting cells will not receive the correct number of chromosomes in the gametes, a condition known as aneuploidy.
The evolutionary innovation that first appeared in arthropods and is characteristic of the most successful of all animal groups is that of
A. three primary types of tissues. B. bilateral symmetry. C. segmentation. D. coelomic body architecture. E. jointed appendages.