Endocrine glands
A) have ducts.
B) secrete hormones.
C) secrete substances onto a surface or into an organ.
D) do both secrete hormones and secrete substances onto a surface or into an organ.
E) have all of these characteristics.
Ans: B) secrete hormones.
You might also like to view...
All of the following will normally be found in the filtrate EXCEPT
A) potassium B) urobilinogen C) glucose D) erythrocytes
During the rising (depolarizing) phase of a neuronal action potential,
A. PK+ becomes much greater than PNa+. B. PNa+ becomes much greater than PK+. C. PK+ is the same as PNa+. D. Na+ efflux (flow out of the cell) occurs. E. K+ flows rapidly into the cell.
At birth, the ovaries of a female baby contain less than one million oogonia
Indicate whether the statement is true or false.
What does "B" represent on the diagram?
A. myosin myofilament B. actin myofilament C. sarcomere D. Z disk E. cross-bridge