Plants that show a pattern of stomatal opening and closing that is the reverse of C3 plants are called
A. CAM.
B. C4.
C. temperate.
D. Calvin cycle.
Answer: A
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Answer the following statements true (T) or false (F)
1. The bicoid gene is a homeotic gene that encodes a transcription factor. 2. Both embryonic stem cells and embryonic germ cells are pluripotent. 3. A myeloid progenitor cell can differentiate into immune cells of the blood and lymph systems. 4. Davis, Weintraub, and Lasser demonstrated that MyoA, MyoD, and MyoH could transform undifferentiated fibroblast cells into muscle cells. 5. There are no federal government funds currently available for stem cell research.
Which of the following statement best describes the defining characteristics of members of the Class Testudines?
A. They lack teeth. B. They have a hard shell. C. They have a kinetic skull. D. They have both a hard shell and are lacking in teeth. E. They have both a kinetic skull and a hard shell.
The different calls of vervet monkeys indicate
A) the types of food available. B) the availability of water. C) the size of a territory. D) sexual differences. E) the types of predators detected.
Which "no-touch" room decontamination method showed significant effectiveness against MRSA, Acinetobacter, and C. difficile?
A. Photosensitizers B. Aerosolized hydrogen peroxide C. Titanium dioxide D. Vaporized hydrogen peroxide systems