During a lunar eclipse, the moon is completely dark because Earth blocks sunlight from hitting the moon.*
a. True
b. False

Competition occurs between species when

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic