Answer:
birds
Explanation:
<em>Archaeopteryx</em> is an iconic fossil bird that lived during the Late Jurassic, approximately 150 million years ago. <em>Archaeopteryx</em> is iconic because it is a transitional fossil between non-avian dinosaurs (reptiles) and birds. The osteology of <em>Archaeopteryx</em> indicates that it was similar to that of nonavian theropod dinosaurs, i.e., dinosaurs characterized by hollow bones and three-toed limbs. Unlike modern birds, <em>Archaeopteryx</em> had a full set of teeth, a long tail, three fingers with claws and hyperextensible second toes commonly known as 'killing claws'.
Calcium deficiency disease (hypocalcemia) --- like osteoporosis, osteopenia !!
Answer:
<u>Shrinking habitat because of habitat distruction,</u> is changing the geographic range of koalas. Because of this koalas are coming in contact with humans and domestic animals and getting hurt/killed while searching for food since there isn't enough in the wild.