Deer are mammals, and therefore have systems that are basically the same as other mammals.

which describes how gas exchange takes place?

a.
oxygen is absorbed through capillaries in the skin.

b.
water flows over the gills in one direction.

c.
air passes in and out of the lungs.

d.

air enters through spiracles.

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers