ANSWER:
I think it is the first one
Explanation:
Speciation is the process in which new species are created through evolution. I might be wrong though.
the evolutionary process through which new species emerge
Atom, cell, tissue, organ
Infrared rays are felt <span>as heat is transferred between Earth and the atmosphere</span>
The cytoskeleton is the grid-like lattice of protein f<span>ibers. The function of the cytoskeleton is that it maintains the shape and support of the cell, and also assists with the organelle movement. </span>
