Answer: A. ancestral trait
Explanation:
Bipedalism can be define as a form of terrestrial locomotion, in which the organism moves with the help of two rear limbs or legs. Typical bipedal movements includes the hoping, running and walking. The evolution of the human bipedalism occurred in primates in about 4 million years ago with Sahelanthropus (oldest human ancestors or African Apes). The human ancestor Sahelanthropus led to the morphological alterations in the human skeleton including changes in the bones such as size of the bones of the foot, knee size, shape and orientation of the vertebral column, and leg length. All these changes contributed to the bipedalism.
<span>Chloroquine could lead to blindness if it is not used properly. This anti-infective can accumulate in the retina or optic nerves and lead to blindness if overused. This medicine is typically used as a way of combating malaria, but as shown, it can have side effects that are very negative.</span>
The outer covering of a reptile egg, may be flexible, calcified eggshells, while there are some reptiles that has hard eggs. A snake lays a kind of reptile egg that is leathery. A reptile egg may differ from one another, depending on the species.
people do not use water correctly and waste it
It could be they want the answer that they could not adapt to the changing climate. they where wiped out just by an asteroid though
