Evolutionary biologists studying the evolution of lizard horn length found _________.

A. that lizard horn length evolved as a defense mechanism against predators
B. that the tools of the molecular biologist could not be applied in a study of lizard horn length
C. lizards shedding their horns
D. no particular advantage to longer horns


A. that lizard horn length evolved as a defense mechanism against predators

Biology & Microbiology

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Which of the following is required by plants in the smallest quantity?  

A.  boron B.  potassium C.  phosphorus D.  nitrogen E.  sulfur

Biology & Microbiology

Apoptosis begins when ____ is inactivated

a. CED-3 b. CED-4 c. CED-9 d. the death signal receptor e. a nuclease

Biology & Microbiology

John Hoogland (1998 ) studied Gunnison's prairie dogs (Cynomys gunnisoni) and observed that an increase in litter size was observed when females ________

A) chose males that were the largest in the colony B) mated with more than one male C) extended the time of copulation with individual males D) established a large territory for mating

Biology & Microbiology

The carrying capacity of an area is determined by 

A. food, temperature, and diseases. B. diseases, predators, and space. C. light, diseases, and the season of the year. D. All of these answers are true.

Biology & Microbiology