In April, a population of frogs in a local ravine had a population of 42, which was increased in May by 263 tadpoles.  Pesticide runoff killed 26 tadpoles, and predators consumed 8 frogs.  In July construction workers began clearing the ravine and ran over 12 frogs.  Calculate the population growth rate of the frogs in the ravine from April to August. 

The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.

This class has taught you that the use of science and medicine in practical ways has become an international endeavor. one of the greatest examples of an international science accomplishment is which allows the profiling of human dna, useful not only to science but also medicine. a) forensic science b) the fbi c) the human genome project d) bioterrorism

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute