The ___ era had many extinctions because of large variations in climate A. Mesozoic
B. Precambrian
C. Paleozic
D. Cenozoic

Science A P E X

What feature of cell theory is best demonstrated in the image

Iguanas need to live in a habitat that is very warm, so the pet store warms their enclosures with "basking lights" which act as an artificial sun. describe how the three methods of thermal energy transfer may take place within the iguana's enclosure.

Which feature would you expect to find in a population in which sexual selection depends on male competition?