The element specifically associated with muscle contraction is
A. calcium
B. phosphorus
C. potassium
D. sodium
Ans: A. calcium
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In most plants stomata are ____
a. open during the night and closed during the day b. nearly always open c. closed only when guard cells are not exposed to sunlight d. almost never open e. open during the day and closed during the night
Which one of the following best describes the proper sequence of steps involved in the scientific method? a. state hypothesis b. observe c. experiment d. support or disprove hypothesis e. form a prediction
A) b, a, d, e, c B) a, b, c, d, e C) b, a, e, c, d D) a, b, c, e, d E) e, b, a, c, d
The sex chromosome composition of a person with Turner's syndrome is
A) XXX B) XXY C) XO D) XYY
Discuss the various ways by which antibodies interact with antigen and facilitate antigen inhibition or destruction.
What will be an ideal response?