What chemical is used to treat demodectic mange in dogs?
a. amitraz
b. fipronil
c. imidacloprid
d. methoprene
.A
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Which of the following statements is incorrect?
A) The contractions of skeletal muscles pull on tendons and move bones of the skeleton. B) Skeletal muscles store nutrient reserves. C) Skeletal muscles are responsible for the pumping action of the heart. D) Skeletal muscles support the weight of some internal organs. E) Skeletal muscle contractions help maintain body temperature.
Unique voltage-gated Na+ channels in pacemaker cells that open when the membrane becomes more negative (hyperpolarizes) and bring about the initial depolarization in the pacemaker potential are called ________ channels
Fill in the blank(s) with correct word
Briefly describe the driving force for the movement of water across plasma membranes
What will be an ideal response?
Which of the following is true of the sodium-potassium exchange pump?
A) It maintains sodium at equal intracellular and extracellular levels. B) It is a passive transport process. C) It moves sodium into the cell and potassium out of the cell. D) There is one type of carrier protein for sodium and a different type of carrier protein for potassium. E) It is an example of active transport.