Which of the following statements regarding the cell cycle control system is false?
A) The cell cycle control system receives messages from outside the cell that influence cell division.
B) The cell cycle control system triggers and controls major events in the cell cycle.
C) The cell cycle control system includes three key checkpoints to complete a cell cycle.
D) The cell cycle control system operates independently of the growth factors.
Answer: D
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At a certain point in the flowering process, shoots become committed to making a flower. This is called
A. apomixis. B. bilateralism. C. phase change. D. competence. E. floral determination.
Research suggests that contamination of water by agricultural chemicals appears to____
a. increase sperm count b. decrease sperm count c. increase sperm motility d. eliminate sperm production completely e. have no effect on sperm
Antibiotics are used to treat diarrhea caused by shiga toxin-producing E. coli.
Answer the following statement true (T) or false (F)
In a severe allergic reaction, a person's tongue can swell up, effectively blocking the air passageways. An emergency procedure can be performed to restore airflow. Basically, a hole is cut into the passageways below the blockage to allow air to flow
into the lungs. What passageway would be best for the surgical hole? What will be an ideal response?