Because the molecules that are being transported is moving against its concentration. gradient. in other words, its moving from where it's low in concentration to where it's high in concentration.
<span>In horses, the most distal bone in their hindlimb, which is the cannon bone is homologous to the metatarsal bones in humans.</span>
Answer:
D) infectious proteins with no associated nucleic acid.
Explanation:
They could look for similarities in the DNA or protein structuresof the organisms<span> and similarities in early development</span>