All of space and the matter in it is
a galaxy
the universe.
O the solar system.
o the Milky Way galaxy.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

the answer is c.) there is a warm front in region a and a stationary front in region b.

that is wrong, its not thymus.

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.