Which microtubule type is paired to its correct function?
A. Polar microtubules - positioning of the spindle apparatus
B. Aster microtubules - positioning of the spindle apparatus
C. Kinetochore microtubules - separate the poles
D. Polar microtubules - bind kinetochore to centromere
B
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Select the best set of data for constructing the type of diagram shown above
A. molecular data B. morphological data of extant species C. anatomical, physiological and developmental studies of extant species the fossil record D. A combination of a-d would give you the best data set.
Neurotransmitters are released into the _______ while hormones are released into the _______.
a. synaptic cleft; brain b. bloodstream; synaptic cleft c. synaptic cleft; bloodstream d. None of the above
A period of mass extinction is often followed by ________
A) explosive diversification B) paedomorphosis C) global warming D) continental drift
Which organisms form the basic foundation of the food chain in the ocean?
A) phytoplankton B) jellyfish C) krill D) shrimp