For a freshwater fish, the output from the kidney in Figure 48-2 would be:
a. a small volume of hypotonic urine.
b. a large volume of hypotonic urine.
c. a small volume of hypertonic urine.
d. a large volume of hypertonic urine.
e. a small volume of isotonic urine.
B
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Due to high rates of water loss, all woody plants must produce more of which type of tissue?
A. secondary xylem B. secondary phloem C. cork D. bark
Communal courting areas are called
A. leks. B. mating structures. C. resource areas. D. territories. E. breeding grounds.
Gymnosperms and angiosperms evolved ____ allowing them to live and reproduce in drier habitats than bryophytes and seedless vascular plants.
A. spores B. seeds, spores, and fronds C. vascular tissue, spores, and fronds D. pollen grains and seeds E. fruit and flowers
Enzymes dissolve holes in the extracellular matrix then ___ cells grow and migrate out towards the tissue that sent the growth factors
a. endothelial b. neuronal