Which of the following has heterodont dentition?
A. alligators
B. turtles
C. lizards
D. dogs
E. crocodiles
Answer: D
Biology & Microbiology
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Should a genetic abnormality arise, ________ prevent a cell from progressing uncontrollably through the cell cycle.
A. cis-acting elements B. checkpoint proteins C. trans-acting elements D. growth factors E. Ras's
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In an adult male, the ____ extends through the inguinal canal
a. scrotum b. ejaculatory duct c. vas deferens d. seminal vesicles e. urethra
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In your body not all cells go through the cell cycle
a. true b. false
Biology & Microbiology
The embryo of a ________ undergoes direct development
A) snake B) frog C) lobster D) butterfly E) dragonfly
Biology & Microbiology