An organism’s physical appearance is its

1. key concept list themajor biomes, and give onecharacteristic feature of each.

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above