Antidiuretic hormone promotes water conservation by increasing the levels of ______ in the collecting ducts of the kidney.
A. aquaporins
B. G-protein coupled receptors
C. vasopressin
D. Na+/K+ ATPase
E. Na+/glucose symporters
A. aquaporins
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Macrophages are phagocytic cells.
Answer the following statement true (T) or false (F)
Precipitation brings appreciable quantities of nutrients into ecosystems that are collectively called ________
Fill in the blank(s) with correct word
The cytoskeleton has several primary functions. The first and most obvious is that it acts as an interior skeleton that supports the rest of the cell. What is another function of the cytoskeleton?
A) It provides a communication network whereby chemo-electrical signals can be sent from one area of the cell to another. B) It creates a durable outer covering to increase the strength and rigidity of the cell. C) It provides a series of tracks along which vesicles can move throughout the cell. D) It connects one cell to another.
When a seed germinates, the embryo emerges from its dormancy and begins which phase of the plant life cycle?
A. Alternate generation B. Monocot generation C. Sporophyte generation D. Gametophyte generation E. Dicot generation