C. Can produce fertile offspring
The species may be widespread so they do not share the same population, territory or resources. However, if they are the same species, they can produce fertile offspring.
Passive is when the channels don't need energy to do so and active is when they need energy
Answer: Armored fish
Explanation:
The earliest known fossil vertebrates were heavily armored fish discovered fish in rocks from the Ordovician period.
The fossils shows the path from the early aquatic life to the vertebrates, vertebrates to mammals.
The fossils shows that it is vertebrate and are the oldest known fossil ever known. The fossils of the animals and plants helps to known the behavior of the past time and based on that research and study is done.
Answer:
The third one
Explanation:
If all is option then all of them
I think the answer is the sun but i could be wrong
