In the last few years, discoveries of differences among bacterial cells caused scientists to divide the monera into two distinct groups, the eubacteria and archaebacteria.
a) biochemical
b) environmental
c) reproductive
eliminate
d) structural

In a certain ecosystem owls are predators for mice. the owl population increases and they eat more mice this causes the mouse population to decrease what happens next? a.the birth of mice increases. b. the birth rate of owls increases c. the population of owls decreases d. the population of mice increases

45 points how are people today being protected from tsunamis? earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out. areas in tsunami risk zones are no longer heavily populated. radar is used to measure wave heights regularly. meteorologists study the winds to determine if wave heights will be large.

Which of the following human activities resulted in the growth of the north american deer population?