Some animals hibernate during winter. What molecules provides energy to them during the time .

Which of the following sex and generation combinations directly produces the pollen tube of angiosperms? a) male gametophyteb) female gametophytec) male sporophyted) female sporophyte

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field