Answer:
First one
Explanation:
Only answer that makes sense.
Answer:
the fill in the blank can be filled with new muscle tissue, digestive enzymes, hormones, and bone.
Answer:
<em>This is an example of natural selection (adaptation).</em>
Explanation:
Natural selection tends to favor those organisms which are better adapted to live in an environment.
As tortoises having flat shell and long neck were better adapted to live in barren area, hence through natural selection those organisms were favored in such an ecosystem.
As tortoises that lived on the vegetative lands were more adapted to live in such an ecosystem, hence through natural ecosystem these organisms were favored and increased in numbers.
RNA viruses can copy themselves which is harder for scientists to give an accurate conclusion to solve them.
Because of a tide probably or rain
