According to the contour lines, which side of this hill is the steepest? They're the same steepness. You can't tell from this type of map. Side A Side B

The first generation of offspring from the cross of two parents is called the a.f1 generation b.f2 generation c.short generation d.p generation

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic