List the three processes involved in the formation of urine in order. 1. tubular secretion 2. tubular reabsorption 3. glomerular filtration
A. 1, 2, 3
B. 2, 3, 1
C. 2, 1, 3
D. 1, 3, 2
E. 3, 2, 1
Answer: E
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As herbivores adapt to a plant's defenses, the plant will always allocate more and more resources to those defenses to deter the herbivore
A. true B. false
Which of the following is false with regard to the extracellular matrix?
A) These structures are external to the cell membrane, but are still an integral component of cell function. B) Extracellular matrices are only found in association with eukaryotic cells. C) Extracellular matrices play a role in determining the shape of a cell. D) Bone and cartilage are examples of cells that have specialized extracellular matrices associated with their function. E) Extracellular matrices play a role in determining the mechanical properties of tissues and organs.
Aging may be attributed to
a. genetics. b. free radical damage. c. a decline in DNA repair mechanisms. d. changes in structural proteins. e. all of these.
A collection of tiny organisms that drift and swim in lakes and seas and include both heterotrophs and autotrophs are knows as ___________.
A. excavates B. metamonads C. plankton D. trypanosomes E. phytonomads