Irises and other ____ plants flower only when the hours of darkness fall below a critical value, typically in summer.
A. short-day
B. long-day
C. annual
D. biennial
E. perennial
Answer: B
Biology & Microbiology
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Otto Loewi demonstrated that neurons transmit signals across synapses by ____
a. electrical signals b. calcium channels c. acetylcholine d. chemical signals e. proteins
Biology & Microbiology
The hormonal control over excretion most likely occurs in the
a. Bowman's capsule. b. proximal tubule. c. distal tubule. d. loop of Henle. e. urinary bladder.
Biology & Microbiology
The ________ is the temperature at which atmospheric water condenses
Fill in the blank(s) with correct word
Biology & Microbiology
Which of the following is altered in a program to increase flexibility?
What will be an ideal response?
Biology & Microbiology