Which of the following is not a body cavity?
a. Abdominal
b. Thoracic
c. Spinal
d. Diaphragm
e. Pelvic
d
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Macrophage cells undergo a process called phagocytosis in which material is brought into a cell in the form of membrane vesicles and then transported along microtubules toward the cell center. Assuming that the centrosome is near the cell center you can predict that these vesicles are moving to the ________ end of microtubules using the motor protein _________.
A. minus end; kinesin B. plus end; kinesin C. minus end; dynein D. plus end; dynein
Archaea genomes contain introns
Indicate whether the statement is true or false.
A single seed lands on one of a group of isolated islands. Several million years later, its descendants
have evolved into a number of new species on the different islands, representing a variety of trees, shrubs, and vines. At that point in time, we have an example of
a. adaptive radiation. b. punctuated equilibrium. c. genetic drift. d. microevolution. e. mutation.
Which of the following has led to the
extinction of most of the Hawaiian honeycreeper species?
a. destruction of habitat b. introduction of new predators c. introduced diseases d. climate change e. all of these