Most have eight but some have as many as twelve.
The answer is, D. Organ system
Answer:
Globally, the primary sources of greenhouse gas emissions are electricity and heat (31%), agriculture (11%), transportation (15%), forestry (6%) and manufacturing (12%). Energy production of all types accounts for 72 percent of all emissions.
Tar and other ingredients found in smoke act as carcinogens which can cause an uncontrolled growth of cells
Answer:
A, they are both coverings. The cell membrane for the entire cell and nuclear membrane surrounds the nucleus.
