Atectonic plate consists of

1.the crust and uppermost mantle

2.the oceanic and continental crust only

3.the asthenosphere only

4.the crust and entire mantle

What type of cell is produced after fertilization occurs and the gametes combines ?

Mention true or false : a) cholera is marked by acute diarrhea and no urination. b)mosquitoes are the source of dysentery germs.

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules