Natural gas
explanation:
solar power, coal, and petroleum are used to power things (i.e. produce electricity)
Answer:
Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used to determine species' relatedness.
Explanation:
Animal dander would be the answer you're looking for.
Hope this helps :)
Answer:
If that is a picture of DNA, then nucleic acids are the most common macromolecule
Explanation:
to give birth to youg one